14 best lithium battery chargers

Product description

A charger to use with the most advanced high-power Lithium Iron Phosphate battery technology from BikeMaster.The unit is designed for charging / maintaining lithium-ion batteries.Input: AC 120V, 60Hz; Output: DC 12V, 2A.Built-in circuit protection guards

• A charger to use with the most advanced high-power Lithium Iron Phosphate battery technology from BikeMaster.The unit is designed for charging / maintaining lithium-ion batteries.Input: AC 120V, 60Hz; Output: DC 12V, 2A.Built-in circuit protection guards

User questions & answers

Question:	Will this work for a 30 ah lithium battery
Answer:	yes,wow for wowtac a5 monster,blindly bright.
Question:	Will this charger "wake up" my discharged lithium ion battery
Answer:	It is 3500 lumens on a real count
Question:	I hooked this up to a 2 year old (shorai lfx19a4-bs12) and it goes to full charge pretty quickly but still not enough juice to crank. battery gone
Answer:	TO get to Strobe in the Wowtac A5. . From on or off. . Double Click to get to Turbo. Then Double click again... to get to Strobe.
Question:	will this charger work for on the shorai batteries
Answer:	Yes, you can unscrew the head or tail of the light and remove the battery and replace it with another 26650. They are NOT proprietary batteries either. You can use other brands and it will not only work the light, but the light will also charge them.

Product description

Introducing the all-new GENIUS10, making it one of our most powerful, highest-performing, energy-efficient, and compact charger yet. The GENIUS10 is a 6-volt and 12-volt battery charger, battery maintainer, trickle charger, and battery desulfator, rated at 10-amp for all types of lead-acid and lithium-ion batteries, including flooded, gel, and AGM, as well as, marine and deep-cycle batteries.



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• GENIUS10 - Similar to our G7200, just better. It's 17% smaller and delivers 115% more power. It's the all in one solution battery charger, a battery maintainer, trickle charger, plus battery desulfator
• Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries
• Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates
• Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts
• Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life
• Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge
• Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more

Product description

Introducing the all-new GENIUS1, making it one of our most powerful, highest-performing, energy-efficient, and compact charger yet. The GENIUS1 is a 6-volt and 12-volt battery charger, battery maintainer, trickle charger, and battery desulfator, rated at 1-amp for all types of lead-acid and lithium-ion batteries, including flooded, gel, and AGM, as well as, marine and deep-cycle batteries.



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• Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
• Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries.
• Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
• Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
• Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
• Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
• Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

• Two battery type options: 12V Lead Acid and 12V Lithium(LiFePO4); Input voltage: 100-120VAC, Output: 12V 2A
• Multi-level safety protection: spark proof, reverse polarity, overcharging, short-circuit, over-temperature, and dust resistance. with bad battery identify and 12V Lithium(LiFePO4) battery 0V activation function.
• Perfect for charging all 12V lead-acid, flooded, sealed maintenance free batteries (AGM and gel cell) and 12V-Lithium(LiFePO4) up to 85Ah, Safely maintain all types of motorcycle, automotive, marine, RV, Boat, ATV, powersport, lawnmower & garden etc.
• Adopt 5-stage smart charging and maintains principle (Initialization, Trickle Current, Bulk Charge, Absorption Mode, Float Mode) to ensure maximum battery life and performance, without overcharging.
• Intuitive LED indicators provide visual charging state feedback and diagnostic information. Easy connection to vehicle battery using the included battery clips and O-ring terminals cord. Includes a 12ft output cord and 2-year warranty.

User questions & answers

Question:	Can it be left in plug
Answer:	Yes. It can be left plugged in. I store one of my cars all winter and maintain the car battery with this charger for about 4 months.
Question:	Still trying to see if the charger will work on 14.8 volt lipo battery pack? will it work on 7.4 volt also
Answer:	It is designed to charge 12 Volt batteries, common in vehicles with PB acid batteries or LiFePO4 meant to to replace them. No don't use it on a 7.4 volt battery. It would either overcharge it, causing damage, or fire or likely not work at all. That said, I have not tried to charge anything but a 12 volt battery, and would be surprised if did work at all.
Question:	Will this charge and maintain a 100ah lithium iron phosphate or lifepo4 battery and a regular lithium 18650 battery pack
Answer:	no
Question:	What is the actual float voltage for LiFeP04 batteries
Answer:	Float votage 31.2 to 13 8.

Product features

4 STAGES - STANDARD CHARGE & MAINTAIN MODES

1. Initialization: Initialize diagnostic battery performance and desulfating the battery through 17V pulse.
2. Bulk: Major charging stage where the battery receives the majority of its charge. During this stage the battery brought to 75 - 80% of its charger. The MBC022 charger delivers maximum current until the terminal voltage has risen to the full charge level for Normal battery.
3. Absorption: Completes the charge up to virtually 100% at a constant voltage. The current tapers off after the current reached the minimum level.
4. Float: Maintenance charging at constant voltage, keeping the batteries at 100% charge. Float mode chargers indefinitely without damaging the battery.

EASY TO USE

The unit has a very simple operation design, so very easy to use.

• Firstly, Connect the AC power supply.
• Secondly, Choose the right battery type( lead-acid or lithium(LiFePO4) ).
• At Last, Correct connect the battery.

IMPORTANT: When you select the charging mode, you must disconnect the battery.

The unit is built-in 2 color LED indicates stage of charging, so very easy to use.

• FLASHING RED: not charging battery, reverse battery.
• SOLID RED: battery charging.
• FLASHING GREEN: battery greater than 80% charged.
• SOLID GREEN: full charged and maintaining.

Product description

The LITHIUM US is an advanced microprocessor controlled charger specially designed to recharge and maintain the cells of Lithium-Ion Phosphate batteries while maximizing their performance and lifespan. It is a fully automatic (connect and forget) charger with 8 charging steps. Some of the steps include a testing sequence to show if the battery can take and retain charge, a unique maximization step to restore full capacity, and patented maintenance charging to ensure maximum performance even after months of inactivity.

With up to 4.3A of charge current available the LITHIUM US is extremely flexible and will charge Lithium Ion batteries from 5Ah to 60Ah and maintain up to 120Ah. Operation is simple and charging will commence upon connection with no need to disconnect the battery from the vehicle. At charge start the charger will automatically reset any low voltage protection electronics (Battery Management System) fitted. Charging can be restarted manually at any time using the reset button.

The unit is splash and dust proof so it can be used in all climate conditions safely. It is easy and safe to use with it's spark free and reverse polarity protection technology. It is short-circuit proof which protects the vehicles electronics.

The Lithium US battery charger has a 5 year Limited warranty

SAFE TO USE: User Safety through spark-free operation and reverse polarity protection. Vehicle Electrical Safety through exceptionally clean voltage and current delivery with no surges or spikes. No need to disconnect the battery from the vehicle when charging.

• Specially designed to recharge and maintain the cells of 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP)
• Up to 4. 3A of charge current available and will charge LiFePO4 batteries from 5Ah to 60Ah and maintain up to 120Ah
• Fully automatic 'connect and forget' charger with 8 charging steps including a testing sequence to show if the battery
• Numerous accessories simplifies using the same charger for multiple battery applications
• Water and dust resistant means it is safe to use in all climate situations
• SAFE TO USE: User Safety through spark-free operation and reverse polarity protection. Vehicle Electrical Safety through exceptionally clean voltage and current delivery with no surges or spikes. No need to disconnect the battery from the vehicle when charging. Input voltage 110-120 VAC
• Minimum battery voltage required: 5.0V
• Fit Type: Universal

User questions & answers

Question:	Why does this "lithium charger" have a "desulphation" charging phase
Answer:	Good catch :) the diagram on this page is incorrect for this charger. Go pick up the manual (its online). Step 1 is ACCEPT. I've been very happy with mine, 2+ years ownership.
Question:	Can you use this on an AGM or lead acid battery too
Answer:	This charger has the special programming for charging and protecting Li batteries. CTEK Offers other excellent chargers for other type batteries. The short answer is no.
Question:	Do i have to buy multiple chargers for acid,agm and lithium
Answer:	You can use same charger for acid and agm but lithium charger is only for lithium batteries
Question:	Can i leave it on all winter or should i remove it from time to time? i have an f80 m3 as another individual. thanks
Answer:	I keep mine hooked up all the time when the vehicle is not in use. I have mine for about two years without any issues. The CTEK is build to keep battery at optimum level, never over charging, but maintaining. You shouldn't have any issues leaving hooked during the winter.

Product features

Simplicity

Easy to use, simply attach to the battery and leave the charger to do the rest.

Practicality

Suitable for all batteries. Portable and easy to use.

Speed

Conditions and recharges the battery in the shortest possible time.

Reliability

Suitable for outdoor use. Shockproof and dust proof.

Recondition

Restores battery life and reconditions flat batteries.

Saves Battery Life

Up to 3 times more battery life if you charge with CTEK.

Product description

4-Slot Charging, Widely Compatible



Enjoy the freedom to charge nearly all types of rechargeable battery for electronic deivces, like mouse, remote control treble A battery, flashlight, headlamp, toys double A battery, fan 18650 power battery cell.

Work with Li-ion(4.20V / 4.35V) / IMR / INR / ICR / LiFePO4(3.60V) :10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650,14350, 14430, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500,17650, 17670, 18350, 18490, 18500,18650, 18700, 20700, 21700, 22500,22650, 25500, 26500, 26650,Ni-MH/Ni-Cd(1.48V): A, AA, AAA, AAAA, C, SC.



Better Material & Excellent Safety

Battery charger was made of PC+ABS fire retardant material with heat-resisting,low temperature resistance.EMC electromagnetic compatibility 8 hours full load aging.Power board isolated from other circuit boards totally to ensure quality.



Outstanding design

Frosted process for surface finishing,High elasticity negative polarity. Every slot has a High-precision sliding polarity bracket, easily moving, durable.



Parameters

Input voltage: AC90~260V 50/60Hz 0.4A(Max) DC12V 2A (5.5*2.1mm)

Output Voltage: 4.35V±% / 4.20V±1% / 3.60V±1% /1.48V±1%

Output Current: Max.(1.5A*2/1.3A*3/1.0A*4)

Size: 161mm*107mm*41mm (L*W*H)



Features

1.Single-channel charging current up to 1.5A. Charging speed can be set manually.

2.Automatically stop charging when fully charged.

3.With reverse-battery and short circuit protection function.

4.Automatically detects the battery type,charge status, measure battery resistance, power percentage, capacity by charging.

5.Supports lithium battery repair function and DC12V car charge



Package:

1 X Battery Charger(No battery)

• 【High Quality】Miboxer C4 chargeable battery charger is made of PC Fire retardant material, with excellent heat dissipation and electronic circuit design. When battery is reversed or short-circuited, it will show error symbol. After battery fully charged, it just stopped charging automatically. If the battery is over discharged, our smart charger can even activate this battery. If battery is damaged, LCD display will show error and stop charging.
• 【Universal Battery Charger】4 bay battery charger is fully compatible with Li-ion / IMR / INR / ICR / LiFePO4(3.6V): 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430,14500, 14650, 16500,16340(RCR123), 16650, 17350, 17500, 17650, 17670, 18350, 18490,18500,18650,18700,20700,21700,22500, 22650,25500, 26500, 26650; Ni-MH / Ni-Cd(1.48V): AA, AAA, AAAA, C,SC. Dual power input with DC 12V 2A & AC 90-260V.(Support car charge, but car cable is not included)
• 【Fast Charge, Easy to Use】This Intelligent battery charger can charge 4 rechargeable different type of chargeable batteries simultaneously. You can set the single-channel charging current up to 1.5A max. Automatically/manually select the optimum charge current. Supports 4-channel simultaneous independent charging without affecting. ⚠️Please noticed that it can auto detect Li-ion(4.2v) and Ni-MH/Ni-Cd(1.48v), but you need to select set battery type when charging Li-ion(4.35v) and LiFePO4(3.6v)
• 【Multi-Functional LCD Display】This 4 slot batteries charger with large screen can show voltage, current, charging time, mode, battery type, internal resistance and battery capacity data, easily to understand the charging datum. The LCD back-light will become dark after 1 minutes without any operation. Its 4th bay also has discharge function, which can measure battery real capacity. Please read its manual or video about 4th slot's discharge function,
• 【Best Gift Choice, Package】1* battery fast charger(without battery), 1* power cord,1* user manual. One of memorable presents that you can give.

Product features

1.5A CHARGING SPEED & DISCHARGE FUNCTION

The 18650 battery charger can recognize the battery and charge it as fast as possible.

You can also set the charging current by youself. It can recharge batteries up to 1.5A/bay for Li-ion or 1.0A/bay for Ni-MH / Ni-Cd.

4th bay has discharging function.

Note:It can’t auto identify Li-ion(4.35v) and LiFePO4,you need to manually select the battery type.(If not, the charger will charge the battery as Li-ion 4.2V and battery will be at risk of explosion)

EXCELLENT HEAT DISSIPATION DESIGN

This rechargeable battery charger was made of PC+ABS fire-prevention material,with heat-resisting,low temperature resistance. Safe and environmental friend.

It also has excellent electronic circuit design,you can keep it forever.

Its 4th bay also has discharge function, which can measure battery real capacity. Place battery into 4th bay, then long press ‘slot’ & ‘mode’ simultaneously until ‘0000’ flashes.

PLENTIFUL INFORMATION DISPLAY

MiBOXER rechargeable battery charger with a large digital LCD screen display,states voltage,current,charging time,mode,battery type,internal resistance and battery capacity data and percentage, easily to understand the charging datum.The LCD back-light will become dark after 1 minute if there is no operation.

Full Compatibility, Apply to All Most Rechargeable Batteries in the World

Li-ion(4.2V/4.35V) / IMR / INR / ICR/ LiFePO4(3.60V): 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430,14500, 14650, 16500,16340(RCR123), 16650, 17350, 17500, 17650, 17670, 18350, 18490,18500,18650,18700,20700,21700,22500,22650,25500, 26500, 26650;

Ni-MH / Ni-Cd(1.48V): A, AA, AAA, AAAA, C,SC, Note:It can’t auto identify Li-ion(4.35v) and LiFePO4,you need to manually select the battery type.(If not, the charger will charge the battery as Li-ion 4.2V and battery will bed at risk of explosion)

ACTIVATION FUNCTION

C4 universal battery charger will attempt to activate the battery automatically if necessary. It also have restoration function for the lithium battery which was over-discharged to”0V”, It will use trickle charge method to repair, the battery voltage will slowly increase, so that it can improve the battery life.

BEST MATERIAL

Every slot has a High-precision sliding polarity bracket, easily moving, durable; Long-term use will not be biased.

Supports small capacity battery charging

Supports lithium battery repair function.

MORE SAFETY PROTECTION

Automatically stop charging when battery was fully charged,the LCD screen will display ‘Full’. With reverse-battery and short circuit protection function,the screen will show‘Err’. If the battery is judged as damaged,the scree will show ‘Err’ and stop charging.

SUPPORT CAR CHARGE

You can charge it in your car or vehicle.

Warn:

1. Never charge primary cells such as Alkaline, Zinc-Carbon, Lithium, CR123A, CR2, or any other unsupported chemistry due to the risk of explosion and fire.

2. Safe operating temperature : 15~100°F.

Product description

FOXSUR Universal charger, It is a car charger with 6 charging modes, with display, 2-in-1 lithium battery and lead-acid battery.



Features:

This is a fully automatic battery charger with 7 charge stages.

Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely.

Repair function: This lithium car battery charger may also help restore drained and sulphated batteries.

Intelligent digital display: Chargers that display the charging voltage, charging current, battery charge and temperature.

Switchmode technology: Yes

Polarity protection: Yes

Output short protection: Yes

Non battery link protection: Yes

Over voltage protection: Yes

Over temperature protection: Yes



Compatible battery types:

Lithium battery

Most types of lead acid batteries including Calcium, GEL and AGM, Wet,EFB, etc



Applicable to various vehicles:

It's automatic battery chargers for cars, motorbike, lawn mowers, tricycles, electric vehicles, agricultural vehicles, off-road vehicles, pickup trucks, boats, etc.



Package Includes:

1 x car battery charger

1 x charger manual



Warm Tips:

Adaptation: 12V/24V universal.

Battery connection: red clip clip battery positive (+), black clip (-).

Turn off the power source before connecting or disconnecting to the battery.

It can not activate a dead battery or repair a battery which is damaged seriously; it also can not repair a battery back to 100% new.

FOXSUR car battery charger is covered with a protective film. After removing the protective film, you will see a brand new screen.

• 💯✔【New Upgrade Design】👍In order to create a universal car charger, FOXSUR has been devoted to research car charger. This car charger is the latest model newly developed in 2020 and provides 7-level charging to bring more comprehensive protection for your battery.
• 💯✔【More Widely Used】👍FOXSUR's new lithium carbattery charger is not only able to charge lead-acid batteries, wet batteries, but also more importantly, it can charge lithium batteries. This makes this portable car charger compatible with more batteries.
• 💯✔【Multiple protection】👍Built in circuit protection guards against reverse polarity, sparks, overcharging, over-current, open-circuits, short-circuits and overheating.
• 💯✔【Battery Maintainer】👍FOXSUR Car battery charger, also battery maintenance device, Pulse repair function can help to repair your loss battery and extend battery life. Note: It can not activate a dead battery or repair a battery which is damaged seriously; it also can not repair a battery back to 100% new.
• 💯✔【Save you more money】👍This highly compatible car battery charger allows you to meet the charging needs of all car batteries in one purchase. At the same time, we provide you with high-quality after-sales service, if you have any questions, please feel free to contact us. Note: The screen of the FOXSUR car battery charger is covered with a protective film. After removing the protective film, you will see a brand new screen.

User questions & answers

Question:	Is there over-charge protection when charging lithium batteries? Can I continuously leave the charger connected to the battery
Answer:	It did after I washed it
Question:	The description doesn't say compatible with lifepo4, but the photo does. is it compatible with lifepo
Answer:	The Champion script logo is written in maroon/red colors as pictured on the listing. Thank you.
Question:	Will the charger automatically detect that the battery needs 12V/24V charging or should I choose a setting
Answer:	Yes, it can be charged.
Question:	The description does not disclose that this charger will only deliver 1.5a to a lifepo battery. really unfortunate. back it goes
Answer:	Yes it comes with a usb-c that you can hook to any plug

Product description

The fully automatic 4 Amp Power Tender is a top-of-the-line 12V or 6V switchable battery charger, perfect for automotive, motorcycle and marine repair and maintenance shops.   Float / maintenance function maintains batteries at proper storage voltage without the damaging effects caused by trickled chargers. The integrated smart controller assures that your battery is charged safely and correctly at all times through our ISM (Infinite Sequential Monitoring). The ISM adapts to the battery’s needs hundreds of times per second to deliver the proper amount of charge. With reverse polarity protection and spark-proof operation, you can connect it and forget it!

• STAY CHARGED: The 4 amp car battery charger automotive provides a full charge to your machine's battery before automatically switching to float mode to maintain proper voltage levels for your battery without overcharging
• FULLY SELECTABLE: With the push of a button, easily switch from AGM or flooded and lithium ion (LiFePO4) batteries to provide and maintain an optimal charge level for 6 and 12 volt batteries alike
• HIGH POWERED: 4 amp switchable car battery charger automotive delivers a powerful charge to keep your car, SUV, pickup truck, or boat battery at peak performance by providing reliable engine starts and extended battery life
• EASY TO USE: A low maintenance design that's quick and simple to use, our switchable automobile charger and maintainer is compact and lightweight to operate everywhere, even in small storage spaces
• SAFE AND SECURE: Our car battery charger automotive and maintainer is spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power. 5 Year Industry Leading Warranty

User questions & answers

Question:	What is the voltage input on this charger 120-240? Can someone check the back of theirs please
Answer:	120 volts input. 12 volt 5 amp out put.
Question:	My 2012 HD-Sportster is not starting. The lights and horn still work and seem strong. Think this Batt. Tender will help
Answer:	it would be good to get a voltage reading on the battery with a digital voltmeter-one with a scale that can tell the difference between 1-20 volts. Take a reading on the battery with nothing on- then notice how low it drops with lights and horn- then while cranking the engine. If the battery is below 12.6 volts to start with a charge may help-then repeat the above tests. If the battery shows a full charge but drops below 10 volts while trying to crank, it may be bad. If there is no noticeable drop while it should be cranking (but no crank) you may have a connection or other problem. Will the bike jump start?
Question:	I would have to charge my dead battery outside. Could I hook this up and then leave in the engine bay with the hood closed while charging
Answer:	I have done that very thing for years. I have never had an issue..! I leave a battery tender hooked up 24 hours a day on my Motorcycle.
Question:	Will this charge a healthy battery that is pretty much drained? My other chargers will not activate due to low voltage at the battery
Answer:	I had a dead car battery (under 3 volts) so I jump-started the car, hooked up the trickle charger, then left the car running a while and that got the battery above 3 volts so this trickle charger did kick in. Since this model is really designed for smaller batteries on motorcycles and ATVs, but it did charge up the car battery in about 48 hours.

Product features

About Us

Since the family started this company in 1965, Deltran Battery Tender has taken great pride in designing, manufacturing, and distributing technologically advanced products that meet the ever changing needs of our worldwide customers! Our strategic initiatives have continued to focus on innovation.

Here at Deltran, performance isn’t just a business, it’s a way of life. We are constantly striving to improve every element of our business. As the world advances, we remain state-of-the art with innovative designs and technologies.

Battery Tender’s BTP Microprocessor Technology and quick-connect convenience automatically maintains the batteries in all your vehicles. They are ready to go when you are! You just set it and forget it.

Battery Tender gives high quality, fast-charging convenience and performance.

User questions & answers

Question:	Does it work with 220v AC input
Answer:	Visit your post office, they may have it or know where its been shipped.
Question:	I don't think i want to risk charging a 12ah lifepo4 battery in the lithium mode. how long and at what charging amp is under the lifepo4 mode
Answer:	Id order a size up just for aesthetics of the garmet
Question:	can you upload pdf manual
Answer:	Yes
Question:	Does this charger default to certain settings when unplugged and plugged back in or can it be set to automatically return to desired settings
Answer:	This is a very slim-fitting style, not at all slouchy like a big comfy sweatshirt. It isn’t cropped, but it is definitely cut shorter than a normal sweatshirt. My daughter is normally a small, and I reordered a medium. If I had known, I would have ordered a large for the comfy fit.

Product features

12V/10A 24V/5A Car Boat Motorcycle Smart Battery Charger

The charger have seven mode : standard , 12V Lithium , 24V Lithium , 12V car , 24V car ,

12V Motorcycle (LiFePO4) , 24V Motorcycle (LiFePO4) , Repair .

Features :

1. High efficiency (>85 %)

2. The 7- stage Microprocessor Controlled charging process

3. LCD display : Voltage , Current , Temperature

Package in the box :

1 x charger

1 x user manual

2 x wire connectors

1 x 5M extension socket

• 𝗟𝗢𝗡𝗚𝗘𝗥 𝗕𝗔𝗧𝗧𝗘𝗥𝗬 𝗟𝗜𝗙𝗘 - Provides 24/7 protection by preventing discharge from connected circuitry and guarantees more battery power
• 𝗦𝗔𝗩𝗘𝗦, 𝗖𝗛𝗔𝗥𝗚𝗘𝗦, 𝗔𝗡𝗗 𝗠𝗔𝗜𝗡𝗧𝗔𝗜𝗡𝗦 𝗬𝗢𝗨𝗥 𝗘𝗫𝗣𝗘𝗡𝗦𝗜𝗩𝗘 𝗟𝗜𝗧𝗛𝗜𝗨𝗠 𝗕𝗔𝗧𝗧𝗘𝗥𝗬 - Ultimate protection for your high performance Lithium (LiFePO4 / LiFe / LFP) battery.
• 𝗚𝗘𝗧 𝗬𝗢𝗨𝗥 𝗕𝗔𝗧𝗧𝗘𝗥𝗬 𝗧𝗢 𝗪𝗢𝗥𝗞 - Saves batteries when no other charger will work. If OptiMATE can't save it, nothing will.
• 𝗦𝗔𝗩𝗘𝗦 𝗔𝗡𝗗 𝗧𝗘𝗦𝗧𝗦 𝗬𝗢𝗨𝗥 𝗙𝗟𝗔𝗧 𝗕𝗔𝗧𝗧𝗘𝗥𝗬 - The best preventative measure against Lithium battery damage
• 𝗪𝗢𝗥𝗞𝗦 𝗙𝗢𝗥 𝗬𝗢𝗨𝗥 𝗩𝗘𝗛𝗜𝗖𝗟𝗘 - Whether it be off-road, motocross, or track motorcycle
• 𝗜𝗡𝗧𝗘𝗟𝗟𝗜𝗚𝗘𝗡𝗧 𝗪𝗔𝗞𝗘 𝗨𝗣 𝗠𝗢𝗗𝗘 - BMS (Battery Management System) wake up mode safely wakes battery with integrated BMS protection out of sleep mode.
• 𝗛𝗜𝗚𝗛𝗟𝗬 𝗥𝗘𝗣𝗨𝗧𝗔𝗕𝗟𝗘 𝗖𝗛𝗔𝗥𝗚𝗘𝗥 - OptiMATE Lithium is recommended by Honda, Yamaha, Kawasaki, KTM and Husqvarna and global Lithium battery manufacturers Antigravity, Super-B and Earth-X.

User questions & answers

Question:	I have a lithium 12v battery not 12.8v. Is it still compatible
Answer:	Yes I use it on my 12v motorcycle lithium battery
Question:	Well this charger work with AGM batteries
Answer:	No, it works on Lithium (Li-Ion, LiFePO4) batteries.
Question:	Can I overcharge my battery if I leave this on? Or does it have a safety mechanism to prevent being overcharged
Answer:	No it will not overcharge. Charger goes into a maintenance mode after battery is fully charged and can stay on the charger. Keeps battery at optimum charge until you disconnect it.
Question:	Can I get it with eu plug
Answer:	We don't offer the EU plug, but it can be used with an EU plug (100-240V).

• 1.Multi-Chemistry Battery Types: AGM, Flooded, Gel, and Lithium
• 2.Smart Protection Features: Over-voltage safety, Overheat protection, and Reverse polarity protection
• 3.Battery Input and Output Isolation
• 4.3-phase Charging: Bulk, Boost, and Float
• 5.Compact, sturdy design, built tough for all conditions

User questions & answers

Question:	I have a 130amp alternator. will the 60amp renogy dcdc charger be too large and damage the alternator? how about at idle for up to 1 hour
Answer:	I had a 40A on my 160 amp alternator and noticed a straining noise after a few months that has since gone away after removal of the Renogy. Alt. runs at about 50% when idle, so it would theoretically cover it, but you're not leaving much left for the vehicle systems. I would step down to a 40 or even a 20.
Question:	At 40A, I'll have to run the engine for 2.5 hours to charge a 100 amp hour battery (from completely drained). Correct
Answer:	In principle yes, however, it will probably take twice that long for a "full charge." From the discharged state it will charge at 40 amps but it will reduce the charge rate for best charging and battery life. You don't want to run from full to empty and back every day. I have your configuration (100 amp hour battery and 40 amp charger). I drive 40 miles every day and it is enough to charge the battery for my CPAP and other medical devices for the night.
Question:	What size alternator do you need for this to work
Answer:	I use the 40A version on my Chevy Express with 145 amp alternator. It works fine so long as you're not over-taxing your alternator by trying to heavily charge your engin battery or run full accessories in low speed or idle conditions. For that reason I installed an "ON/OFF" switch in line so I can leave it off at the start of driving to give the alternator time to top out my engine battery. Then, I can switch it on and charge my rv lithium batteries at 40 amps. No problems doing it this way.
Question:	Where does the D+ wire get mounted to? I can interpret the instructions in three different ways, so I am curious what you all have done
Answer:	The D+ wire is a + voltage sensor to turn on the DC to DC Charger only when engine is running. The D+ wire gets hooked up to the fuse panel's ACCESSORY fuse slot, where Accessories only gets +12VDC when engine is running. Use an ATC Fuse Tap with crimp type "blue" butt connector connected to the D+ wire, insert 2 of the same Amp fuses into the 2 fuse tap slots required for your vehicle's Accessories. Although the D+ wire draws no current, it detects when a + voltage is present, the fuses protects vehicle's Accessories. It works.

Product features

Renogy 40A DC to DC Battery Charger

Compatible with a multitude of alternator types, this 40A DC to DC Battery Charger offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries!

Featuring a 3-stage battery charger and multiple electronic protections, owners can feel confident that their batteries are being charged optimally and automatically.

Easily install the compact yet sturdy DCDC 40A on various applications such as: RVs, commercial vehicles, boats, yachts and many more!

High-voltage shutdown

The battery charger shuts itself off when the voltage exceeds the cut-off value. It restarts when the voltage returns to the restart value.

Low-voltage shutdown

The battery charger shuts itself off when the voltage sinks below the cut-off value. It restarts when the voltage rises to the restart value.

High-temperature shutdown

The battery charger switches off when the temperature inside the device exceeds a cut-off value. It restarts when the voltage rises to the restart value.

Short circuit protection

The LED on the battery charger signals a malfunction if a short circuit has been generated. The device fuse must be replaced by a professional after it has been triggered by excess current.

Product description

PD9100L Series 12V Lithium Ion Battery Converter/Chargers provide a Constant Current/Constant Voltage (CC/CV) charge profile as recommended by lithium battery manufacturers. PD9100L Series units can be connected both in parallel and in series. Reverse battery protection prevents charger damage if the battery connections are accidentally reversed. Filtered DC power ensures proper lithium Battery Management System (BMS) operation. Electronic Current Limiting automatically reduced output voltage to prevent overheating and possible damage. High and Low Voltage Protection prevents charger damage from AC input voltage fluctuations. Automatic Thermal Protection reduces charger output to safe levels if unit temperature exceeds safe levels pre-set limits and protects charger damage due to excessive heat. An intelligent cooling fan operates only under high load conditions. Input Voltage: 105-130 VAC 50/60 Hz 725 Watts. Output Voltage: 14. 6 VDC 45 Amps.

• Reverse Battery Protection – Prevents charger damage if battery connections are accidently reversed
• Provides Filtered DC Power – Ensures proper lithium Battery Management System (BMS) operation
• Electronic Current Limiting – Automatically reduces output voltage to prevent overheating and possible damage
• Automatic Thermal Protection – Reduces charger output to safe levels if unit temperature exceeds safe levels pre-set limits and protects charger damage due to excessive heat
• Input Voltage: 105-130 VAC 50/60 Hz 725 Watts / Output Voltage: 14. 6 VDC 45 Amps

User questions & answers

Question:	Can this be used in a fla system and then later used in a lithium system
Answer:	If FLA is flooded lead acid then no you can’t. The charging algorithm is different and it will overcharge. Made for lithium only.
Question:	What charger do I need for lifepo,3.2v,40 ah battery
Answer:	If it has a BMS built in you technically can use any charger but a battery charger for lithium batteries is what you need to get a full charge
Question:	I have a 100 ah battleborn Li ion phosphate battery powering two max air fans, fridge, led lights, usb chargers. What size converter would be best
Answer:	I have 2 Renogy 100AH batteries that I am charging with the 45 amp charger without issues. Make sure you buy the charger for Lithium Ion batteries as the regular charger will not fully charge you battery. I changed out my regular Progressive Dynamics charger for this one and now I have 100% charges instead of 60% charges.
Question:	Can the maximum current be adjusted for use with smaller batteries
Answer:	No. Why would you do that!

Product description

Introducing the all-new GEN5X3, our most rugged, compact, and powerful, onboard marine battery charger we have ever made. The GEN5X3 is designed to charge and maintain up to three 12-volt lead-acid and lithium-ion batteries, including flooded, gel, AGM, and deep-cycle batteries. Each 12-volt battery bank provides up to 5-amps of pure charging power, plus doubles as a battery maintainer and battery desulfator. Included is a GEN5X3 15-Amp 3-Bank Waterproof Onboard Marine Battery Chargers (120-240VAC), Self-Tapping Mounting Screws, User Guide, 3-Year Warranty and certified to UL1236, ISO 8846, and 33 CFR 183.410.



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• Meet the all-new GEN5X3 - Similar to our GENM3, only better. It's 37% smaller and delivers 43% more power. It's one of the best performing onboard marine battery chargers we have ever made.
• Multiple banks - A three-bank onboard battery charger rated a 15-amps - 5-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries.
• Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries.
• Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
• Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
• Redefined mounting - A simplified mounting system allows for quick and easy installations in any direction - even up-side-down - with an integrated anti-vibration backing to isolate shock, vibration, and noise.
• Designed for water - A fully-sealed and waterproof onboard battery charger with an ingress protection rating of IP68, but has survived brutal life cycle testing, including thousands of hours underwater.

User questions & answers

Question:	I have two batteries hooked up in series for my trolling motor! Do i have to disconnect the battery s before i plug it in or can i leave it in series
Answer:	The batteries do not need to be disconnected as long as each charging bank is connected to your batteries in 6-volt or 12-volt increments.
Question:	Can i simply splice in a length of same gauge wire to extend the length of the cables
Answer:	yes
Question:	My application is a 36v golf cart (3 x 12v) - I'm assuming that I could use this for a battery maintainer (one "channel" for ea 12v battery
Answer:	Yes. Channel 1 to battery 1, channel 2 to battery 2, channel 3 to battery 3.
Question:	is it ok to use just 2 banks to charge two battery's when you have a 3 bank charger ? a gen 5x3 3- bank, will it hurt the charger
Answer:	The bank you don't use will not turn on because the unit will not detect a battery. You should be OK. I recently had mine connected to 2 batteries with no issues. Just added a third battery and all is well.

Product description

The GB40 is an ultra-portable, lightweight, and compact portable lithium car battery jump starter pack for 12-volt batteries. With it, you can safely jump start a dead battery in seconds - up to 20 times on a single charge. It's a mistake-proof portable car battery jump starter battery booster pack, making it safe for anyone to use and features spark-proof technology, as well as reverse polarity protection. The GB40 portable car battery jump starter integrates with a high-output 100 lumen LED flashlight with 7 light modes. Including low, medium, high, flashing, strobe, and emergency SOS. It can hold its charge for up to one year without being recharged. Its internal battery can be used to recharge any personal mobile devices like smartphones, tablets, or any other USB device, can be recharged by any powered USB port. It's rated at 1000-amps, and suitable for use on gasoline engines up to 6 Liters and diesel engines up to 3 Liters, such as a car, boat, lawnmower, and more. Included is the GB40 battery booster jump starter pack, heavy-duty battery clamps, USB charging cable, 12-volt USB car charger, microfiber storage bag, a 1-year limited, and lifetime customer support. 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• Start Dead Batteries - Safely jump start a dead battery in seconds with this compact, yet powerful, 1000-amp portable lithium car battery jump starter pack - up to 20 jump starts on a single charge - and rated for gasoline engines up to 6 liters and diesel engines up to 3 liters.
• UltraSafe - Safe and easy to use car battery jump starter pack without the worry of incorrect connections or sparks. Safely connect to any 12-volt automotive car battery with our mistake-proof design featuring spark-proof technology and reverse polarity protection.
• Multi-Function - It's a car jump starter, portable power bank, and LED flashlight. Recharge smartphones, tablets, and other USB devices. It's easily rechargeable from any powered USB port in 3 hours at 2.1-amps. Plus, an integrated 100-lumen LED flashlight with seven light modes, including emergency strobe and SOS.
• Advanced Design - Our most advanced portable car battery jump starter ever. Featuring high-discharge lithium technology for safe operation in any climate. A rugged and water-resistant enclosure rated at IP65. A rubberized over-molded casing to prevent scratching or marring of surfaces. And an ultra-compact and lightweight design weighing just 2.4 pounds.
• In The Box - GB40 UltraSafe Portable Lithium Car Battery Jump Starter Pack, Heavy-Duty Battery Clamps, 12-Volt Car Charger, Micro USB Charging Cable, Microfiber Storage Bag, User Guide, 1-Year Warranty, and Designed in the USA.

User questions & answers

Question:	What is the operating temperature range? Can it be safely left in the hot car in the middle of summer (180 degrees or more
Answer:	Dear Value Customer, Yes, the jump starter can be charged in other countries. All chargers that support USB cable could be used to charge the jump starter.Our package includes a charging head, so please don’t worry.
Question:	How long does the charge for the jumper last. dead batteries are few and far in between. If i were to charge it will it last a year, 2 years
Answer:	I jump started a 2006 Jeep Commander 3.7L and it still had 3 dots of battery left.
Question:	Will this start a Gel Battery
Answer:	2000A Peak Current
Question:	Is this capable of starting up a V8? and I don't mean the tomato juice
Answer:	Dear Valued Customer, We take responsibility for each product sold, and we provide a two-year warranty and lifetime service for the jump starter. Please provide your order number, Then we will record and activate your 24-month warranty.