14 best solar battery maintainer for rv

• 🔆【Ultra-high Conversion Rate】: The 12v solar rechargeable battery adopts the mono-crystalline silicon solar cell to provide 20% high photoelectric conversion rate, convert luminous energy into electric energy and store it in the battery.
• 🔆【Portable and Lightweight, Charge Anywhere】: The smallest size on the market: 6.6*10 inch, weighs only 0.57lb, you can carry it with you. The charger will generate electricity current to trickle charge battery as long as there is sufficient sunlight available.
• 🔆【Charging Indication】：The 5w solar battery charger has indicator lights, when the solar panel is placed in the sun, the indicator light will light up from 20% to 100%. At the same time, a reverse diode is built in to prevent the battery from discharging back to the board at night.
• 🔆【Used for Any Rechargeable 12v Battery】 Served as a solar battery charger and maintainer, which can safely maintain 12V batteries, such as Wet, Gel, SLA,EFB, AGM and Deep Cycle batteries, etc. Also, perfect for any cars, motorcycle, boat, marine, tractor, RV, snowmobile, truck, etc.
• 🔆【12-Month Warranty】: The quality of your premium solar battery charger and comes with a free 12-month warranty! It's windproof and rainproof, but it can't be immersed in water. If you have any questions, please contact us. Your suggestion can help us improve!

User questions & answers

Question:	Windshields are typically uv rated. Does this actually work through the windshield
Answer:	Yes
Question:	WIll it keep a 12v 9AmpH acid battery charged
Answer:	It really depends on the load on your battery. My Prius will drain the 12 V auxiliary battery in about 10 days. I connected the Solar charger to my battery and it has kept the battery charged for over a month during this lock down.
Question:	Does it work with Lithium Ion batteries
Answer:	From a Google search. It is important to note that trickle charging is not acceptable for lithium batteries. The Li-ion chemistry cannot accept an overcharge without causing damage to the cell, possibly plating out lithium metal and becoming hazardous. Float charging, however, is a useful option.
Question:	What does the led module gauge? is is showing the percentage of battery charge, or showing the percentage of power coming from the solar panel
Answer:	Dear friends,the led indicator shows the battery charge.

Product features

Why do you choose Aeiusny 12V Solar Trickle Charger?

1). The Aeiusny 12V Solar Trickle Charger is essential if your vehicles (car, truck, motorcycle, camper, RV, boat, tractor or lawn mower) only occasionally used. It prevent battery from being dead when y want to use it.

2). It's designed to fully charge a battery and maintain it at a proper storage voltage with free energy source the sunlight. But it is not a fast charger.

3). With the SAE cable, we have three extension cords to provide up to 5W of power for your different vehicles, keep the battery in top performance.

4). One-way quick connector

The SAE connector is a way to connect and disconnect, eliminating the need to identify the positive and negative terminals, and is easy to use.

Note: In some makes of vehicles, the cigarette lighter may not operate when the ignition is turned off. If so, you can connect directly to the battery using alligator battery clamps and cables.

Important note:

1. Before connecting the wires, please separate the red and black clamps to avoid collision and result in short circuit.

2. It can work in any environment and weather. Of course, the more sunlight, the better the charging effect.

3. The charger will not overcharge the battery, and there are reverse diodes on the board to ensure that the battery power is not wasted at night.

4. The charger is just a battery maintainer, not a primary charging device.

• 12 volt DC solar power charger, it is perfect for maintaining batteries of car RV motorcycle boat marine trailer tractor ATVs truck, etc. Designed to maintain the 12V battery at a proper storage voltage with sunlight.
• Plug and play: Heavy duty 2.1mm x 5.5mm DC plug with extension cord. Male to Female, included cigarette lighter plug in the socket, easy to install even for those have no professional knowledge. No additional much maintenance to the kit, no electricity cost, place the panel facing the direction with the most sunlight possible.
• Built-in safety protection: Built-in circuit board to prevent your batteries from discharging backwards through your solar panels at night when charger’s voltage is lower.
• It is designed with a indicate light in the junction box, when the solar panel is facing the sunlight, it will light up and shows that the solar panel is charging the battery. Please note the kit is not for charging your dead battery. It is a solar battery maintainer that keeps your battery charged to lengthen its life expectancy.
• Lightweight and easy to carry, it weighs only 8.8oz, size 14.5*7.8 inch, and made of waterproof and long lasting material, designed for long term use.

User questions & answers

Question:	will this charger work for lithium batteries
Answer:	I believe so I put one on my side by side which has a lithium battery just not the same brand as this one
Question:	What is the maximum charging voltage
Answer:	Charging voltage is about 14.5V, it works for 12V battery. A build-in circuity will protect your battery from overcharing, no worry it will drain the battery.
Question:	will this work in temperatures that reaches 120 fahrenheint inside a car with windows roll up
Answer:	Yes, it works. This 10 Watt solar panel is designed by waterproof and heat resistant material.
Question:	Will it drain my battery if I leave it connect the battery all the time even there is no sunlight
Answer:	Hello, this 10 solar charger will not drain your battery, you can connect it with your battery all the time. There is a build-in circuitry to provent overcharge battery or provent the currents reverse. We notice that some friends may worry about the light may light up at light and it will drain the battery, but LED light only need 2mA to keep it light up, it will take 17 years for the LED light to drain a 10AH battery.

Product features

10 Watt 12 Volt Portable Solar Trickle Battery Charger & Maintainer

• Designed to maintain the 12V battery at a proper storage voltage with sunlight.
• Built-in circuit board to prevent reverse discharge and overcharging the battery.
• Easy mounting, interchangeable connector clamps and cigarette cables, O-Ring terminal for more applications.
• Lightweight and small size, easy to install, ensure the panel is directly facing the sunlight.
• Can be mounted to the windshield or mounted using the mounting holes and place the charger in the desired location in direct sunlight.

Waterproof and Long Lasting Material

• Waterproof and and long lasting Material for added durability.
• Designed for long term use.

High Efficiency Mono Solar Cell

• Monocrystalline solar panel to maximize solar energy conversion.
• Works better in sunlight.

Portable solar panel for easy to install

• Small and Lightweight designed make it easy to carry and take.
• Fast installation with suction cups and carabiner clips.

Solar Panel Kits for Multipurpose

• 4 suction cups for easy mounting.
• Clamps and Cigarette Lighter Plug, O-Ring terminal for more applications.
• Carabiner Clips for hanging easily.

Fast Connection with One Way Connector

• Easy to use with the 2.1mm x 5.5mm DC plug connector.
• All cable comes with the DC plug fast connector.
• Easy to install even for those have no professional knowledge.

High Quality Cigarette Lighter Plug

• Build-in 10A fuse, with LED indicator.
• Prevent from over-current, overcharging and over heating.

Different Extension Solar Cable for Wet, Gel, SLA, AGM and Deep Cycle Batteries

• Plug the solar charger into your vehicle's 12-volt lighter socket.
• Connect to the battery using the crocodile clips or the O-Ring terminal provided.
• Insulated battery clips for avoiding short circuit current damage the battery.

• 【Multi-scene use】Perfect for off grid 12 volt batteries charging system and a variety of DC applications, designed for charging 12 volt batteries in car, RVs, cabins, boats, marines, shed, cabin, gate opener, battery operated gates, dry camping, garden watering, work great for back-up power and remote power use.
• 【Efficient and Convenient】The product is equipped with a bracket that adjusts the mounting angle for better sunlight reception, it can be mounted on ground, wood or wall.
• 【Safety】With an IP67 waterproof intelligent charge controller, full protections prevent battery from overcharge and over discharge, over voltage, short circuit, etc.
• 【Light and long lasting】The solar panel is lightweight, dimension: 23.6 x 13.4 x 1 inch, easy to carry and install, made with high efficiency monocrystalline solar cells, heavy duty anodized aluminum frame, the corrosion-proof aluminum frame and tempered glass coating shield the panel from weathering and wear.
• 【What's Incldued】Package includes 30 watts 12 Volt solar panel, V shape mount tilt rack bracket, 12V/24V IP67 waterproof intelligent charge controller, two 6.5ft cables with alligator clips and O-ring terminal for battery charging connection, easy to fix and install.

User questions & answers

Question:	I bought this to trickle charge a boat battery in a remote site. do i wire from the sdn-p10a to the battery and cap the load terminals
Answer:	This is a solar controller question. The controller that comes with this panel is rated to work with 12 or 24 volt configurations. Make sure you have an adequate controller rated for 36 volts.
Question:	Can the load terminals be connected to a 12V battery for charging
Answer:	They use fedex but I am still waiting for it and it is coming from Hong Kong. I ordered it Oct 9 and I am still waiting for it. Today is Oct 24.
Question:	Can the mounting brackets be adjusted flat for traveling in my RV
Answer:	I haven't had any problems with this model, and have had it since Christmas 2018.
Question:	Does any manufacturer sell a mounting bracket that allows for flat during travel and 20-25% towards the south sun while parked
Answer:	The panel connection is a standard SAE 2-pin plug, the controller connectors are built in XT60 connectors of the type used in a multitude of applications including e-bikes, model aircraft and drones.

Product features

30W 12V Monocrystalline Solar Panel kits with mounting hardware

30 watt solar panel specifications

• Nominal voltage (Vmp) 18 V
• Nominal current (Imp) 1.4 A
• Open-circuit voltage (Voc) 21.8 V
• Short-circuit current (Isc) 1.6 A
• Cell efficiency 19.5%
• Dimension 23.6 x 13.4 x 1 inch

Mounting accessories includes

• Come with alligator clip & O-Ring terminal (Inner diameter 1/5 inch)
• With the mounting bracket, rovide the easiest way to build a off grid system

30 Watt Monocrystalline Solar Panel

Mounting hole ready, make it easy to mount with the brackets.

NOTE,Installation Manual and User Guide can be downloaded in the middle of listing page.

High efficiency monocrystalline cells

12V battery use, high quality glasses, small in size and easy to take.

Outstanding electrical performance

Has the capability of withstanding heavy snow and strong wind loads.

U shape Mounting Bracket for Easy install

The product is equipped with a bracket that adjusts the mounting angle for better sunlight reception, it can be mounted on ground, wood or wall, the angle of tilt is recommended to be set at 25~35° and towards the sun for higher efficiency of conversion.

Include the IP67 waterproof intelligent charge controller

Auto 12V/24V PWM technology to maintain excellent charging efficiency.

The built-in overcharge protection, over discharge protection, reverse protection and overload protection, keeping safety for home, outdoor, industrial and commercial uses.

With solar cable for connection

Come with alligator clip & O-Ring terminal (Inner diameter 1/5 inch)

Mounting hardware include

Equipped with a bracket that adjusts the mounting angle for better sunlight reception, it can be mounted on ground, wood or wall.

• [Simple and Very Easy to Use]---The solar battery charger panel mounts easily to the windshield or dash and conveniently plugs into your car's 12 volt cigarette lighter! Suction cup available with the solar charger. { If you need a Quick Connection16feet Extension Cable SAE Connectors with Ring Terminal Adapters for this Sunway solar charger, please search the ASIN:B073158Q24.
• [Solar Panel Power up to 1.8W]--This trickle charger will NOT overcharge your battery! Keep your 12 Volt batteries topped up with this solar battery maintainer ,which helps to manage battery drain in all seasons. The amorphous solar panel works well even in cloudy days.
• [Stronger and Durable]-This solar powered battery charger is Covered with ultra clear PV glass which is more efficient, and also with Durable ABS plastic housing which makes this solar panels charger more stronger.
• [For Any Rechargeable 12Volt Battery]--This solar battery trickle charger is the eco-friendly way to maintain the charge of any car, truck, marine , motorcycles , tractors, ATVs, snowmobiles, boat and personal water crafts or RV 12 volt battery!
• [Prevent Reverse Charging]-- With build in blocking diode to prevent reverse charging. And with Blinking LED charge indicator when charging. And the solar charger maintainer Includes cigarette lighter adapter and battery alligator terminal clamps.

User questions & answers

Question:	can it be in the rain
Answer:	Ours is for the boat just wipe it after rain or weekly for dust. If that's not an option im sure it will be fine.
Question:	Is this unit water proof
Answer:	Well I got 2 to keep up the charge in my boat battery. The stay out on top of the cover and the past few days have had hard rain . They were totally laying in the water. I pulled them out and held them I to drain out water. And they are still working. So yes
Question:	How is this solar charger? Does it really waterproof
Answer:	This trickle battery charger solar charger is weatherproof. But it should not be submerged in water.
Question:	Can i use this 12 volt sports solar charger outdoors
Answer:	Yes, this 12 V power sports solar charger is weatherproof. But it should not be submerged in water.

Product features

Sunway solar battery trickle charger maintains the 12 volt battery of car, truck, marine , motorcycles , tractors, ATVs, snowmobiles, boat or RV.

Why do I need a solar trickle charger?



Three reasons to own a Sunway Solar Battery Trickle Charger:

• Batteries Naturally Discharge - Automotive batteries naturally discharge when not in use.
• Vehicles have a small but constant battery drain - Modern vehicles have upwards of 30 body control modules (computers), alarm systems, immobilizers and lock monitoring. These units all consume electricity from the battery. That's why in a week or two with no or little vehicle use the battery can become discharged.
• Battery life is shortened if it is not kept charged - A 12V battery that is not correctly maintained above 12.4V can suffer from sulphation. Sulphation is the main cause of battery failure. That's why the auto battery easy goes to dead when vehicles are left standing for long periods.

Get Sunway Solar Car Battery Charger As Your Battery Maintainer ,so you'll never have a flat battery again!!!

Amorphous solar panel 1.5W, works even if the weather is overcast or dull.

With Blue flashing LED charge indicator. It will flash whenever the battery is receiving charge.One way plug connector. Plug and Play. Pretty safe and very easy to install.

Interchangeable connectors: accessory socket plug and crocodile clips!

The solar charger panel can be mounted to the windshield or mounted using the mounting holes and place the charger in the desired location in direct sunlight.



Note:Some vehicles have tinted windows that will seriously affect the performance of your charger if it is positioned behind them. For Optimum charging the unit should be placed outside the vehicle in direct sunlight!

• 23% High Conversion Efficiency - Solar car battery maintainer with monocrystalline solar cells, monocrystalline cells peak at 23% efficiency, and the persuasive power generation rate be higher than polycrystalline amorphous in the same area.
• Reverse Protection, Battery Maintenance - It has a built-in blocking diode to prevent reverse charging, and battery reverses discharging. It not only keep the battery from drain dead but also extends its usage life.
• Durable and Waterproof - It uses ultra-clear, durable, low iron tempered glass, which has a robust light transmission and can resist hail, rain, and snow, and is easy to clean. Windproof and waterproof, but it can't be immersed in water.
• 12V Charger & Maintainer - Trickle charger & maintainer, can charge all kinds of 12V batteries. Suitable for the vehicles in outdoor work, travel, or camping training. Besides, it is ideal for daily maintenance of the battery in automobiles, motorcycles, ships, agricultural vehicles, snowmobiles, beach cars, and trucks.
• If you have any questions, please let us know, and we will respond to you within 24 hours, and you will receive a full refund or replacement immediately. And we provide 18 months warranty, Lifetime technical support.

User questions & answers

Question:	Can you leave it plugged in when you start the vehicle
Answer:	How much energy does your RV use in one night? The panel produces 20 Watts in strong sunlight, figure 5-6 hours of good sun in a day, that"s approx 100 watt hours of energy. if your RV uses more than that in one night, the answer is no. If it uses less than 100 watt hours, then the answer is yes
Question:	Does it prevent over charging the battery
Answer:	The controller is not waterproof and should be installed indoors.

Product features

Waterproof IP 65

Great waterproof performance. Low Iron-tempered Glass brings excellent waterproof protection for the panel.

Note: Can't be immersed in water.

Cigarette Lighter

Plug the cigarette lighter into the socket when use it to charge or maintain the vehicle's battery, really plug and play.

Note: The cigarette lighter may not work when the automobile is turned off. When starting the engine or driving, you need to disconnect the charger. Avoid power surges to damage the charger.

Alligator Clips

Use the red and black battery clamps to charge and maintain the 12 V battery, make sure they connect correctly.

Note: The red alligator clip is connected to the positive terminal (+) of the battery, and the black one is connected to the negative terminal (-). Don’t leave the solar charger for a long time or leave it unattended.

Why does the label say 18V?

The voltage range of a 12V battery is 10.8v-14.4v. To charge the battery, the output voltage of the component must be greater than 14.4V. Consider the temperature effect of photovoltaic modules. That is, when the temperature rises by 1 degree at 25 degrees, the cell voltage drops by 2mv. When photovoltaic modules are exposed to the sun, the temperature of the modules can reach below 50 degrees. In this way, the voltage output of the photovoltaic module will drop by 2-3V at this temperature. Therefore, it is suitable to make solar panels with a working voltage of 18V.

Is the solar car battery maintainer trickle chargers waterproof?

This 12V 10W solar car battery maintainer charger is weatherproof, But it should not be submerged in water.

Why is the power tested by ourselves different from the power on the product label?

The parameters we label on our products are the results of testing in an ideal laboratory. Solar panels are affected by many factors. such as the intensity of the light and the angle of the panel put on the ground. However, the intensity of the light constantly changes. In addition, the angle of the light illuminating the solar panel also changes with the rotation of the sun. Please try to test your solar panel under the full sunlight to see, and make sure there is no shadow cast on the panel.

Will panels still charge on cloudy days?

This will also depend on the conditions. If it is cloudy and overcast, likely not. If it is cloudy and bright still, then it probably will charge but it won’t be very much. You can choose our 2.5W 5W 7.5W Amorphous Solar Battery Charger, which can be charged under any weather, and it's not affected by weather and environment.

• [Charge Anywhere] Transfer sunshine into electricity, charge and maintain your 12 volt battery in all seasons. The most advanced MPPT(Maximum Power Point Tracking) chip intelligently manage charging and fully protect battery. US PATENT PENDING!
• [Intelligent Charge & Maintain] Built-in intelligent MPPT charge controller, generates at least 10%-20% more power than traditional controller. Smart 3-stages charging algorithm is improved to better charge and maintain battery in all seasons.
• [Full Protections] Prevent battery from over charge, over voltage, discharge and short circuit, reversed polarity protection, waterproof and sparkproof, battery is fully protected.
• [Visual Monitor] The LED indicator helps to visually monitor the working status, better understand battery conditions- Flash in Green, output normal; Flash in Red, Charging normal; Solid Green, Battery is full; Solid Red, Error.
• [Free Maintenance] Tempered glass and strong ABS frame, well built for years. Come with 3-piece SAE cable kits, plug and play, easy to use. No electricity cost, free maintenance for outdoor usage. Backed by extended 12 months warranty + lifetime technical supports.

User questions & answers

Question:	Is this good for an AGM battery
Answer:	No, it was designed for 12V battery, if you connect 3 12v batteries in series, the system would be 36v.
Question:	Can it maintain 3 12V marine batteries hooked in a series
Answer:	The cigarette lighter allows to charge the battery insdie your vehicles, you may also use the battery clamps outside your vehicles.
Question:	it's a solar panel why plug into a cigarette lighter
Answer:	No.
Question:	Does this work with lithium 12 volt battery
Answer:	17 and a quarter inches long, by 7 and a half inches wide. 43.5 centimeters long by 19 centimeters wide I used two different rulers to measure, I would recommend the metric units are more precise.

Product features

Renewable Battery Charger & Maintainer

Batteries naturally drain power and go flat, may never regain full power, the solar charger generates electrical current to trickle keep battery topped off as long as there is sunlight avaible.

Three-stages Charging

Smart three-stage charging algorithm is improved to better charge and maintain battery.

MPPT Charge Controller

Built-in super smart MPPT charge controller, generates at least 20% -30% power than traditional PWM technology.

IP65 Waterproof

Upgraded waterproof design to stand rain and snow in outdoor, just hook it there, free maintenance.

Full Protections

Over charge protection, over discharge protection, reversed polarity protection, short circuit protection, full protect battery in all seasons.

LED Indicator

The led indicator helps to clearly understand the whole charging to battery:

1. LED slow flash in Green: Output Normal/ Always Bright in Green: Battery is full
2. LED slow flash in Red: Charging Normal/ Always Bright in Red: Error or warrning.

Plug & Play

Equipped with 3-piece connection cable kits, battery clamp, cigarette lighter and bare wire. Each of them is equipped with SAE connector, plug and play, easy & simply to connect and disconnect, no need to recognize positive or negative.

Temper Solar Glass

The hight light transmittance solar glass allows the solar cells absorb more sunlight and increase 2%-3% power ouput. The tempered glass increase the ability to stand water and snow load in outdoor, free maintenance.

Solar Cells

The solar charger was made of A grade solar cells with hight efficiency, works better in sunshine with more efficiency.

• ☞【Outstanding Quality】20W solar panel adopts well-built monocrystalline cells with high conversion efficiency up to 24%. Using Tempered glass, weatherproof film and plus aluminum frame for excellent extended outdoor use, which can withstand storms for more than 10 years.
• ☞【Waterproof controller】 Improved waterproof case eliminates the problem of controller water failure. Advanced PWM algorithm can fully protect the battery: under/over voltage, output overload, short circuit and anti-back connect protections. It can greatly enhances 20% charging efficiency with no additional self power consumption.
• ☞【Easy Installation】Equipped with an adjustable mounting bracket, which can rotate 360 degrees to get the best sunlight reception. Comes with mounting accessories to install solar panel on the ground, wall, roof, etc. without any extra maintenance.
• ☞【Wide Application】 It can be used as solar battery charger and maintainer for different 12V DC batteries, such as Wet, Gel, MF, EFB and AGM. A variety of scenarios for RV, car, boat, marine, camper,lawn mower, motorcycle, jet ski, water pump, shed, gate opener, etc.
• ☞【What You Get】 1 solar panel + 1 solar charger regulator controller + 2 alligator clips + 1 SAE extension cable + 1 set of mounting pieces. Extended 12 months warranty and our 7*24h technical service support.

User questions & answers

Question:	Can this solar panel be connected in parallel with other brand of solar panel
Answer:	I have a Renogy 100W solar panel Of course, I connected it in parallel with Renogy's solar panels on my roof, and it has worked very well so far! Just make sure that the solar panels are all 12V. I am considering buying 2 more packs to install on the roof of my RV.
Question:	Can it be used to charge devices (phones, laptop...) without having the battery hooked up
Answer:	Hello, this solar panel cannot directly charge electronic devices such as phones, laptops. It is suitable for charging batteries.
Question:	Do they come with cables to be connected to the charge contoller
Answer:	Comes with 1 pig tale . Comes with cable that hooks to battery look like small jumper cables. Has wire that comes off panel and plugs into controler. Must follow instructions correctly or will not work
Question:	Is there a setup that can charge 5 dirt bike/quads
Answer:	Do you mean the setting of charging 5 batteries at the same time? This is to charge separate batteries, and you cannot charge 5 batteries at the same time

Product features

20W Solar Panel

SOLPERK 20W 12V Solar Panel strictly adopted brand-known materials and aim to bring you an excellent outdoor solar charging experience. The sturdy frame and tempered glass can resist various extreme weather like rain, snow and hail. High-end monocrystalline cells are used to trickle charge the battery continuously and keep it in top performance.

Just rest assured to hand over your battery to our solar panel, let it rejuvenate your battery once again!

High Efficient Cells

Topping monocrystalline solar cells with high transmission delivered high efficiency for modules. The conversion rate can reach up to 24% under Standard Test Condition.

Adjustable Bracket

Equip with a flexible bracket, which the angle can be adjusted arbitrarily to obtain maximum sunlight. The bracket is pretty easy to install on the ground, wall and roof.

Waterproof Structure

Great waterproof performance. Tempered glass brings excellent waterproof protection for the panel. Anodized aluminum frame of good insulation and corrosion resistance let you leave it outdoors for decades without worries.

Specification

Maximum Power: 20W

Maximum Power Current: 1.11A

Maximum Power Voltage:18V

Operating Voltage: 12 V

Open Circuit Voltage: 21.6V

Short Circuit Current: 1.19A

Weight: 3lb

Dimensions: 14.6*13.2*0.7 inch

All technical data at Standard Test Condition.

STC：Irradiance 1000W/m².

Cell Temperature 77℉.

Air Mass AM=1.5

• 🌞【Unique Super Magnetic】6 magnets of the solar panel quickly and firmly install the solar panel to the position you need. 4 stainless steel rings are convenient for fixing the 12 volt solar battery charger with rope. Stay away from the trouble that the suction cup is easy to fall after long-term use. SAE cable, plug and play.
• 🌞【Built-in Intelligent Solar Controller】Improve the charging efficiency by 20%. More importantly, it does not consume power. Not working at night, automatically re-work during the day. Solar panel kit can not only intelligently control charging and discharging to extend battery life, but also have full protections such as overload protection, short circuit protection, lightning protection, undervoltage protection, overcharge protection, and reverse polarity protection.
• 🌞【Smart Indicator Light】3 color changes of the indicator light, easy to understand the current working status of the solar battery charger and no longer confused. Blue: in the sun, red: charging, green: fully charged
• 🌞【Ultra thin, Lightweight but Durable】The internal structure of other flexible solar panel is easily broken, resulting in lower conversion efficiency. We use two sturdy materials to wrap the solar battery charger and cover them with professional solar glass to solve this problem. Excellent aging resistance, high temperature resistance and not easy to deform. Windproof, rainproof, free maintenance for outdoor use.
• 🌞【Solar Charger and Maintainer】Charge the 12V battery safely and maintain it to extend battery life (not a fast charger) such as Wet, Gel, MF, EFB and AGM. Solar battery tender, suitable for any cars, motorcycles, ships, tractors, RVs, Powersports, snowmobiles, trucks, etc. We have been engaged in the solar field for decades, proudly provide 12 months warranty period, lifetime technical support, and reply within 12 hours.

Product features

Portable

Portable solar panel is ultra thin, takes up little space, and is easy to carry and store.

Installation location

The solar battery charger 12 volt need to face south and place it in direct sunlight without shadows.

Tip:The stronger the sunlight, the better the power generation effect.

Use alligator clip

Use the alligator clip to connect the battery directly to charge and maintain the battery. Positive to positive, negative to negative when connected.

Tip: Red is the positive and black is the negative. Incorrect connection will cause a short circuit.

Plug and play

Just insert two connectors to each other, the operation is very simple, and you can do it without experience.

Tip: Products of different manufacturers may have different polarities. Make sure that the positive is to the positive, negative is to the negative.

Product description

This product uses high efficiency solar cells to achieve maximum power in the same area.

Protable solar panels use thin film amorphous silicon technology, which can work in any environment and weather.

It can work in any environment and weather . Of course, the more sunlight is available, the higher the power generation efficiency is.

The charger will not overcharge the battery, and there are reverse diodes on the board to ensure that the battery power is not wasted at night.

The product is compact in small size and can be installed outdoors.

It can also be used to maintain automobiles, trucks, all-terrain vehicles, motorcycles, ships, farm equipment or any 12V battery applications.



Reminder:



If the car is charged, do not use it when starting the car and driving to avoid the surge of the car engine may damaging the solar charger.

In some vehicle manufacturers, the cigarette lighter may not work when the ignition switch is turned off.

If so, you can use the crocodile battery clamp and cable to connect the battery directly.



Specification:



Solar Panel Type: Amorphous

Maximum Wattage: 3.3W

Short Circuit Current: 190mA

Open Circuit Voltage: 23.4V

Maximum Power Current: 215mA

Operating Voltage: 12V

Size: 14*8.5*0.8inch

Weight: 2.2lbs



Package:



1 x Solar car battery maintainer

1 x Cigarette lighter plug

1 x Battery charging clip line

4 x Suction cupds

1 x Manual

• 🚗[Charge Any Weather]It's amorphous solar panel battery maintainer, which can be charged under any weather, and it 's not affected by weather and environment.
• 🚗[Charger And Maintainer]This product is a solar battery maintainer and trickle charger. which can charge all kinds of 12V batteries. In addition, it is suitable for all kinds of automobiles, motorcycles, ships, agricultural vehicles, snowmobiles, beach cars, trucks and so on.
• 🚗[Low Maintenance]The interfaces of the product are plug-and-play, It's easy to connect . It doesn't need any extension lines and There will be no additional electricity charges. This solar panel charger can charge car batteries in time and maintain the service life of batteries.
• 🚗[Sturdy And Practical]Weatherproof solar battery charge,The surface of tempered glass can withstand high impact force,hail,rain and snow,and it has strong light transmission. Besides,It's easy to clean.
• 🚗[Easy To Install]It uses durable ABS engineering plastics , with installation holes on the side. And it's easy to install and fix. Extended 12 months warranty + Lifetime technical support.

User questions & answers

Question:	How do i find out if it wont charge my battery through the cigarette lighter if the vehicle is turned off
Answer:	Buy cigarette lighter usb plug just like any one you would use to charge your phone in the car (you probably have one). Plug in your phone and see if it's charging with the car turned off.
Question:	does this have a diode to prevent discharge
Answer:	Dont know for sure but I believe it does
Question:	Hello. Can someone please tell me how to charge a phone on this solar panel? I sent this to my grandma and she said that it came with no wires
Answer:	This is not made for phone charge
Question:	I'm looking for a charger to use on my 36v golf cart(6 batteries). Would this work without over charging my batteries if I left it over the week
Answer:	I went by the ad about over charging. Says it won’t. I have it hooked to my lawn tractor (12v) and I just set it and forget it. So far so good. Probably 2 months so far. Cranks nice when I need it.

• [Charge Anywhere] Transfer sunshine into electricity, charge and maintain your 12 volt battery in all seasons. The most advanced MPPT(Maximum Power Point Tracking) chip intelligently manage charging and fully protect battery. US PATENT PENDING!
• [Intelligent Charge & Maintain] Built-in intelligent MPPT charge controller, generates at least 10%-20% more power than traditional controller. Smart 3-stages charging algorithm is improved to better charge and maintain battery in all seasons.
• [Full Protections] Prevent battery from over charge, over voltage, discharge and short circuit, reversed polarity protection, waterproof and sparkproof, battery is fully protected.
• [Visual Monitor] The LED indicator helps to visually monitor the working status, better understand battery conditions- Flash in Green, output normal; Flash in Red, Charging normal; Solid Green, Battery is full; Solid Red, Error.
• [Free Maintenance] Tempered glass and strong ABS frame, well built for years. Come with 3-piece SAE cable kits, plug and play, easy to use. No electricity cost, free maintenance for outdoor usage. Backed by extended 12 months warranty + lifetime technical supports.

User questions & answers

Question:	out of box dimensions
Answer:	20.15" L x 13.78" W x 0.67" H
Question:	how long does a 12 v battery take to charge in perfect sun
Answer:	It depenses on your battery capacity. The 20W Solar charger generates 1A more or less current in perfect sunshine, it will take 12hour to fully charge 12Ah battery from 0 to 100%
Question:	Can I just leave this panel in my car's back window facing the sun, connected to my car's battery when not in use to trickle charge the battery
Answer:	Yes..that's the way I have it on my truck.
Question:	Will this work for lithium battery
Answer:	No.

Product features

Renewable Battery Charger & Maintainer

Batteries naturally drain power and go flat, may never regain full power, the solar charger generates electrical current to trickle keep battery topped off as long as there is sunlight avaible.

Three-stages Charging

Smart three-stage charging algorithm is improved to better charge and maintain battery.

MPPT Charge Controller

Built-in super smart MPPT charge controller, generates at least 20% -30% power than traditional PWM technology.

IP65 Waterproof

Upgraded waterproof design to stand rain and snow in outdoor, just hook it there, free maintenance.

Full Protections

Over charge protection, over discharge protection, reversed polarity protection, short circuit protection, full protect battery in all seasons.

LED Indicator

The led indicator helps to clearly understand the whole charging to battery:

1. LED slow flash in Green: Output Normal/ Always Bright in Green: Battery is full
2. LED slow flash in Red: Charging Normal/ Always Bright in Red: Error or warrning.

Plug & Play

Equipped with 3-piece connection cable kits, battery clamp, cigarette lighter and bare wire. Each of them is equipped with SAE connector, plug and play, easy & simply to connect and disconnect, no need to recognize positive or negative.

Temper Solar Glass

The hight light transmittance solar glass allows the solar cells absorb more sunlight and increase 2%-3% power ouput. The tempered glass increase the ability to stand water and snow load in outdoor, free maintenance.

Solar Cells

The solar charger was made of A grade solar cells with hight efficiency, works better in sunshine with more efficiency.

Product description

Our company has an experienced professional technical team to help customers solve various solar charging problems, so that we can use pollution-free solar energy. That batteries will slowly leak after being stored for a period of time. And it will consume power for a long time, which will make the battery unchargeable. Therefore, we can use our solar charger to charge and maintain the battery.



This product has the following characteristics: :



1. Using high-efficiency polycrystalline solar cells, even if the panel is smaller than the traditional model, it still can achieve higher power efficiency.

2. Equipped with a charging controller, it has various protection functions that never cause any damage to the battery.

3. It is convenient to charge as long as there is sunlight to charge the battery.

4. Easy to connect. No need to pull long and complicated extension cords. At the same time it works under human body safety voltage and is very safe.

5. The surface is made of glass and easy to clean.



Reminder:



1. Before connecting the wires, separate the red and black clips to avoid collision and short circuit.

2. This product is a solar charging board which should be installed in a place where the sun is shining directly. The more sunlight, the better the charging effect.



Specification:



Solar Panel Type: polysilicon

Maximum Wattage: up to 10 watts

Current at Pmax: 556 mA

Open Circuit Voltage: 21.3 V

Operating Voltage: 12 V

Size: 13.4*9.8*0.7 inch

Weight: 2.4 lbs



Packing list:



1 x Solar panel

1 x Charge Controller

1 x Battery cable

2 x Self tapping screw

2 x Expansion screws

• 💡[High-efficiency solar panel] Solar battery charger is to convert sunlight into electric energy and charges the battery. The more the sunlight is, the higher the charging efficiency is. The charger will generate current to trickle charge the battery that prevent the loss current of the battery in storage or standby process.
• 💡[Charger and Maintenance Device] This product is a solar battery charger and maintainer. It can safely charge and maintain various 12V batteries such as Wet, Gel, MF, EFB and AGM. In addition, it is also suitable for any car, motorcycle, ship, tractor, RV, Powersports, snowmobiles, trucks, shed, cabin, gate opener, etc.
• 💡[Full-automatic intelligent charging and maintenance Controller] Intelligent three-level charging mode, chip intelligent management charging and complete protection of battery, short circuit protection, open circuit protection, reverse protection, overload protection, under voltage protection, over charge protection to improve system efficiency and extend battery life .
• 💡[Easy to install and angle adjustable] The product is equipped with a bracket that adjusts the mounting angle for better sunlight reception. The product is light and easy to install for inexperienced people. The interfaces are plug-and-play. The kit needs no extra maintenance, no electricity. It’s energy conservation and environmental protection.
• 💡[More durable] Weatherproof Solar panels applies g a more durable aluminum alloy frame. It's windproof and rainproof, but it can't be immersed in water. Extended 12 months warranty + Lifetime technical support.

User questions & answers

Question:	Can I lengthen the leads so I can mount this on the roof of my hunting shack? f so, how long can I go
Answer:	Yes but we strongly recommend the battery rings... better connection.
Question:	How can i tell if this is working? with my voltmeter, i checked the output of the solar panel and read ~20vdc at the j conntector. when
Answer:	I just got my charger, used it at a dry campground in my 16 ft trailer. Plugged it into the 12 volt connection inside the trailer, placed it by a window, it kept my power up. I also set up a connector from my battery and had it come out by my elec cord. That way if I am in shade I can connect from outside and have the 10 ft extension to sun. I do not have outside access to my battery, it is under a cabinet.
Question:	Will this run and bank (recharge from night use) enough energy for my rv furnace and pump
Answer:	This is used to charge batteries in boats, cars, and motorcycles.
Question:	Is the controller waterproof &, therefore, can it be mounted exposed to the elements
Answer:	No, it is not necessary to have a charge controller for 12volt batteries.

Product features

Why should we maintain the battery?

• Generally, the battery continues to discharge even when it is not in use.
• This discharge consumes battery power and may damage the battery, thereby shorten its life.

How to maintain the battery?

• The basic requirement for battery operation and maintenance is to keep the battery fully charged and not discharge.
• Our solar panels are designed for the daily maintenance of batteries, prevent damage to the 12 V rechargeable battery due to excessive natural loss after long-term storage.
• Note: Not a fast charger!

How do solar chargers work?

• Solar panel is a panel made of crystalline silicon material, which can effectively absorb sunlight, convert it into electrical energy, and release a small current to charge and maintain the battery.
• The installation location, sunlight intensity and light time are the main factors affecting the solar panel power generation.
• The stronger the sunlight, the better the charging effect.

Multi-scenario Applications

The battery as an energy storage device is an important part of the DC power supply system. The battery can be used in cars, motorcycles, ships, ships, recreational vehicles, trailers, electric sports, snowmobiles, etc.

Ultra-High Conversion and No Built-in Battery

• The panel uses materials with high photoelectric conversion rate
• No built-in battery

Waterproof & Easy to Clean

• No special maintenance
• Just wipe with a wet towel

360-Degree Rotating Panel & Easy to Install

• With a solar panel that can rotate 360 degrees, can be adjusted at will to absorb light
• With simple mounting bracket, can be fixed with screws

Controller

1. The controller is connected to the solar panel (no battery is connected), two indicator lights are on.

2. The controller is connected to the battery. Charging: the yellow/red light is on, and the green light is off.

3. Fully charged: the green indicator light and the yellow/red indicator light is on.

Note: The controller does not work at night, does not consume battery power, and automatically restarts the next day!

Plug & Play

• The two connectors included with the product have already been paired with the positive and negative poles. Just plug in the connector, no other operation is required, and it is easy to use.

Note: The positive and negative poles of connectors made by different manufacturers may not match and may be short-circuited.

Screw Sets

• Comes with four screws, two expansion screws, and two screws.

Note: When using, first fix the expansion screw in the position where it needs to be installed, then screw the screw into the expansion screw.

Alligator Clips

• To maintain the battery, use the included crocodile clip and connect it to the positive and negative terminals of the battery for charging and maintenance.

Note: The red clip is connected to the positive pole of the battery, and the black clip is connected to the negative pole of the battery. Connect them correctly to avoid short circuit.

• ✅【Charging in any weather】：Solar panel battery charger, it uses amorphous film technology and it can charge batteries under various weather conditions with a wide range of applications.
• ✅【Charging indication】：The product has built-in indicator lights, which will turn on when solar panels generate electricity. At the same time, a reverse diode is built in to prevent the battery from discharging back to the board at night.
• ✅【Easy to maintain】：Weatherproof solar battery charge, it uses high-strength solar energy glass which has strong light transmission and can resist hail, rain and snow, and is easy to clean.
• ✅【Charger and Maintenance Device】：This product is a solar battery maintainer and tickle charger, which can charge all kinds of 12V batteries. In addition, it is suitable for all kinds of automobiles, motorcycles, ships, agricultural vehicles, snowmobiles, beach cars, trucks and so on.
• ✅【More durable】：All the interfaces of the product are plug and play, which makes it easy to connect. The shell is made of ABS engineering plastics. It is durable and has mounting holes on the side for easy installation and fixing. Extended 12 months warranty + Lifetime technical support.

User questions & answers

Question:	Does this stop charging the battery at night? Can I continue charge on my horse trailer living quarters while using my inside lights and microwave
Answer:	Yes stops at night but yes will continue to charge during day while using lights and microwave
Question:	Re the 7.5w version, b07qqw6q4s: does it have a full charge controller, like the 9w version, yes or no?? very unclear from the description
Answer:	7.5 watts do not require a charging controller. Because its current is small.
Question:	What size wire does this kit come with
Answer:	Not sure of size
Question:	Does this stop battery charge at night completely
Answer:	Yes

Product features

Product Specifications:

Solar Panel Type: Amorphous

Maximum Wattage: Up to 1.8Watts

Current at Pmax: Up to 110mA

Volt: 12V

Size: 13.98*4.92*0.55 inch

Weight: 1.2lbs

Amorphous material

Can be charged in cloudy days

Waterproof & Splashproof

Can't be immersed in water

Plug & Play

No complicated operations

Easy to clean

Just wipe regularly

What is the meaning of the 1.8W solar panel indicator light?

• Place the solar panel in the sun without connecting any equipment and the blue indicator light will be on.
• Use an alligator clip or cigarette lighter to connect to the battery, the blue indicator light is still on.
• (If it goes off when connected, it may be a short circuit, please check whether the polarity is connected correctly)

Will it damage the battery?

• Our solar panels have built-in isolation diodes and do not consume battery power, so they can be used with confidence.

The battery is dead, can I directly charge it with a 1.8W solar panel?

• If the battery is exhausted, it is recommended to use an AC charger to fully charge the battery, and then use the solar panel to maintain the battery.

Will the battery be overcharged?

• The charging current of 1.8W solar panels is relatively small, so there is no need to worry about overcharging.

• The 10 watt solar panel battery charger and maintainer, a basic off grid solar panel kit, ideal for a variety of DC applications. It can safely charge and maintain various 12V batteries such as Wet, Gel, MF, EFB and AGM.
• It is also suitable for maintaining and charging the batteries in any car, motorcycle, boat, tractor, RVs, snowmobiles, trucks, shed, cabin, gate opener, etc. It can generate current to trickle charge the batteries, prevent the loss current of the battery in storage or standby process.
• Package includes 10 watts solar panel, U shape mount Tilt Rack bracket, 10A PWM LCD intelligent charge controller, two 6.5ft cable with alligator clips and O-ring terminal for battery charging connection, easy to fix and install.
• The solar panel is lightweight, easy to carry and install, made with high efficiency monocrystalline solar cells, heavy duty anodized aluminum frame, the corrosion-proof aluminum frame and tempered glass coating shield the panel from weathering and wear.
• The product is equipped with a bracket that adjusts the mounting angle for better sunlight reception, it can be mounted on ground, wood or wall. With an PWM LCD intelligent charge controller, full protections prevent battery from overcharge and over discharge, over voltage, short circuit, etc. NOTE,Installation Manual and User Guide can be downloaded in the middle of listing page.

User questions & answers

Question:	I installed this on my boat. After sitting for 2 weeks my battery was dead. Could I have a faulty controller
Answer:	Mine did not come with one as well but if your battery was completely dead it won’t change it you will need to get a new battery
Question:	Es compatible con mi ring video doorbell
Answer:	This 10W solar panel is suitable for charging 12V battery.
Question:	I have another charger can I run both I have 2 battery’s can I put the solar one on one and the charger on the other
Answer:	No, this solar panel can only connect to one solar charge controller, but you can connect your 2 battery in parallel, so the can be charged by this 10W solar panel at the same time.
Question:	Do you sell the part so I can plug in my cell phone or radio. What’s the name of it
Answer:	we do not sell that part.

Product features

10W 12V Monocrystalline Solar Panel kits with mounting hardware

Maximum Power: 10W

Optimum Operating Voltage (Vmp): 18V

Open-Circuit Voltage (Voc): 21.8V

Optimum Operating Current (Imp): 0.55A

Short-Circuit Current (Isc): 0.6A

Weight: 2.75lbs

Dimensions: 13.19*8.15*0.67 inch

• Come with alligator clip & O-Ring terminal (Inner diameter 1/5 inch)
• Provide the easiest way to connect a off grid system

10 Watt Monocrystalline Solar Panel

Mounting holes and extension cable ready, easy to mount on wall wood or ground.

NOTE,Installation Manual and User Guide can be downloaded in the middle of listing page.

High efficiency monocrystalline cells

A grade mono solar cell, made for 12V batteries, high quality glasses, heavy duty for decades using.

PWM LCD dispaly intelligent charge controller.

Auto 12V/24V PWM technology to maintain excellent charging efficiency.

Overcharge protection, over discharge protection, reverse protection.

Reliable

Corrosion-resistant aluminum frame allows extended outdoor use; the panels can last for decades

Durable

Mounting hole ready, make it easy to mount with brackets.

Versatile

Can be used for many different applications

• Monocrystalline solar panel kits 12 volt DC solar power charger, it is perfect for maintaining batteries of car RV motorcycle boat marine trailer tractor ATVs truck, etc. It is designed to maintain the 12V battery at a proper storage voltage with sunlight.
• Plug and play: Heavy duty 2.1mm x 5.5mm DC plug with extension cord, Male to Female, included cigarette lighter plug in the socket, easy to install even for those have no professional knowledge. No additional much maintenance to the kit, no electricity cost, place the panel facing the direction with the most sunlight possible.
• Built-in safety protection: Built-in circuitry will protect your batteries from discharging backwards through your solar panels at night when charger’s voltage is lower, and it will also protect your battery from overcharging when your battery is fully charged during day time.
• It is designed with a indicate light in the junction box, when the solar panel is facing the sunlight, it will light up and shows that the solar panel is charging the battery.
• Lightweight and easy to carry, it weighs only 2.09 LB, size 14.1*13.1 inch, and made of waterproof and long lasting material, designed for long term use.

User questions & answers

Question:	Will the LED light shows up when the battery is fully charged
Answer:	No the light comes on when ever there is current available at the cigarette adapter. It will come on when plugged into the vehicle or when the sun is shining on the panel.
Question:	is this a mppt or pwm controller
Answer:	There is no Charge Cntroller. There are enough Cells in the Panel to reach 12.6 to 12.8 volts when not connected to a Battery. A full charged Battery will test at 12.6 volts. A partially depleted Battery, say it tested at 12.4 will be charged until the battery voltage reaches 12.6 to 12.8. This is better than having a Controller which could go bad or malfunction. With the Cells balanced to charge no more than 12.6 to 12.8 volts, its not possible for your Battery to overcharge. Also, the voltage the panel generates will not wale up your Vehicle's Modules which could be sensitive to voltages in excess of 12.8 volts. This is a good panel. On an overcast day with my tinted Windows it will still trickle charge my battery until fully topped off.
Question:	will this charger work for lithium batteries
Answer:	No, this solar panel does not work for lithium batteries. because lithium batteries need a stable voltage and currents, also require precise control of charging.
Question:	There's green light before connecting to car battery@ 11.92V. But charging stops and green light turns off upon connecting with correct polarity. Why
Answer:	This is a 14.4V solar panel, when the solar panel is facing the sunlight, it will light up, but if you connect it to a battery, and the battery is lower than 12.5V, the light will turn off, when the voltage of the battery is higher than 12.5V, the light of the solar panel will light up again.

Product features

20 Watt 12 Volt Portable Solar Trickle Battery Charger & Maintainer

• Lightweight and small size, easy to take and install.
• Designed to maintain the 12 volt battery at a proper storage voltage with sunlight.
• Built-in circuit board in the junction box to prevent reverse discharge and overcharging the battery.
• Easy mounting, interchangeable connector clamps and cigarette cables, O-Ring terminal for more applications.
• Can be mounted to the windshield or mounted using the mounting holes and place the charger in the desired location in direct sunlight.

Waterproof and Long Lasting Material

• Waterproof and long lasting material for added durability.
• Designed for long term use.

High Efficiency Mono Solar Cell

• Monocrystalline Solar Panel to maximize solar energy conversion.
• Works better in sunlight.

Designed with a Indicated Light

• Designed with a indicate light in the junction box,
• when the solar panel is facing the sunlight, it will light up and shows that the solar panel is working

Solar Panel Kits for Multipurpose

• 4 suction cups for easy mounting.
• Clamps and Cigarette Lighter Plug, O-Ring terminal for more applications.
• Carabiner Clips for hanging easily.

Fast Connection with One Way Connector

• Easy to use with the DC plug connector.
• All cable comes with the SAE fast connector.
• Easy to install even for those have no professional knowledge.

High Quality Cigarette Lighter Plug

• Build-in 10A fuse, with LED indicator.
• Prevent from over-current, overcharging and over heating.

Different Extention Solar Cable for Wet, Gel, SLA, AGM and Deep Cycle Batteries

• Plug the solar charger into your vehicle's 12-volt lighter socket.
• Connect to the battery using the crocodile clips or the O-Ring terminal provided.
• Insulated battery clips for avoiding short curcirt current damage the battery.