3 best alarm clock battery backup

Alarm clock battery backup is a feature commonly found in alarm clocks, particularly digital ones, to ensure that the alarm functions properly even in the event of a power outage or if the clock is unplugged. This feature is important to ensure that you don't miss important appointments or wake up late due to a power failure.

Here are some key points about alarm clock battery backup:

  1. Functionality: When an alarm clock has battery backup, it typically includes a small internal battery or uses replaceable backup batteries, such as AA or AAA batteries.This battery powers the clock's timekeeping and alarm functions, allowing them to continue running when the main power source (electricity) is unavailable.

  2. Power Outages: During a power outage, the battery backup ensures that the alarm clock can maintain the correct time and continue to operate. This means your alarm will still go off at the set time, helping you wake up as planned even if the electricity is out.

  3. Timekeeping Accuracy: Many alarm clocks with battery backup have quartz movements, which are highly accurate for timekeeping. The backup battery ensures that the clock remains accurate even when it's not connected to power.

  4. Settings Preservation: The battery backup also helps in preserving your alarm settings and any other customized settings you may have programmed into the clock. This way, you don't need to reconfigure the alarm or time every time there's a power interruption.

  5. Duration of Backup: The duration for which an alarm clock can run on battery backup varies depending on the clock's design and the quality of the batteries used. Some clocks can operate on backup power for several hours or even days, while others may only last for a few hours.

  6. Battery Replacement: In some cases, you may need to replace the backup batteries periodically to ensure the continued functionality of the battery backup feature. It's a good practice to check and replace these batteries regularly to avoid any surprises during a power outage.

In summary, alarm clock battery backup is a useful feature that provides peace of mind by ensuring your alarm clock continues to function during power outages or when unplugged. It helps maintain accurate timekeeping and preserves your alarm settings, ensuring you wake up on time, even in adverse conditions.

Below you can find our editor's choice of the best alarm clock battery backup on the market
  

USCCE Digital Alarm Clock Radio - 0-100% Dimmer, Dual Alarm with Weekday/Weekend Mode, 6 Sounds Adjustable Volume, FM Radio w/Sleep Timer, Snooze, 2 USB Charging Ports, Thermometer, Battery Backup

USCCE

Based on 5 reviews Check latest price
  • FULL DIMMABLE DISPLAY - The brightness of the 3.4-inch compact LCD is dial-controlled and adjustable from 0 to 100%, from cast-no-glow at midnight to bright enough that the time can easily be read from across the room during the day. Other features displayed on the screen include: day, 12 or 24hr mode, temperature (°F or °C), status and ringtone for alarm 1 and 2.
  • CUSTOMIZABLE ALARM - Dual alarms with separate weekend/weekday/all-7-day mode satisfy the needs of everyone and every family. You may choose one of the 5 built-in tones (Beep/Piano/Buzzer/Bird/Soft Music) or radio as wake up sound, which gradually increases in volume from gentle to the level you set (options from level 3 to 16). Snooze allows extra 9 minutes of slumber.
  • MORE THAN JUST AN ALARM - FM radio saves up to 40 stations, and the sleep timer function (10-150min) offers the luxury to fall asleep with your favorite station playing. 3.5mm headphone jack comes handy not disturbing others nearby. 2 USB ports will charge your phone or other mobile devices while you sleep. (Headphones and charging cable NOT included).
  • BATTERY BACKUP - AC-powered, but you have the option to back it up with 3 AAA batteries (NOT included) in case of power outage. Not only time and settings are restored, alarm and radio are also supported (USB will not charge). Please be noted that the clock may drain batteries fast, so ONLY use as a backup but NOT everyday operation.
  • If you have any questions or comments, please don’t hesitate to contact us - we are always here to help.

User questions & answers

Question: What is the length/width of this product
Answer: Hi Friend, thanks for your question. Here is the Dimension: 4.25in(length)*2.56in(height)*3.27in(width)
Question: Is the radio volume independent from the alarm volume
Answer: Hi, Thanks for your question. Yes, it is. There are two buttons on the top to adjust the volume up and down: when the radio is on it controls the radio volume (with V in front of the number) and when radio is off it controls the alarm (with L in front). Radio volume can be turned off all the way down but the lowest volume for alarm is level 3 so you will never “mute” your alarm by mistake.
Question: Exactly how long is the power cord
Answer: Hi Thanks for your question. The length of power cord is 4.9ft/1.5m Any issues or concerns, please contact us via E-mail: [email protected]
Question: Will this clock re-set itself automatically on time changes, or do you have to re-set it manually
Answer: Hi Daylight savings just happened and I had to push the Time Set button and turn the big wheel back a notch to set it back the hour. (My computer showed the correct time and I synched this clock radio to that.) News radio station is confirming the time too.

Product features

Digital FM Tuner & Headphone Jack Supported

Turn on the radio, lean on the couch and enjoy your favorite channels, music, or news. And you can adjust the radio volume from 0-16 level. Or you can set your favorite channel as the 6th wake up sound.

3.5mm headphone jack makes it convenient not disturbing others nearby.

Dual Alarm with ON/OFF Indicators

The 2 alarms clearly say "OFF" or show the time making it easy to tell which alarms are active.

Indoor temperature ( ℃ or ℉) Display.

Easy Set Time & Handy Dual Front USB Charger

Unique designed rotary button make the time/alarm setting as simple as "push" + "turn".

Handy dual front USB ports to charge your mobile device, fitness tracker or MP3 players.

AC Powered & Battery Backup

AC-powered, but you have the option to back it up with 3 AAA batteries (NOT included) in case of power outage. Not only time and settings are restored, alarm and radio are also supported (USB will not charge).

Please be noted that the clock may drain batteries fast, so ONLY use as a backup but NOT everyday operation.

Rocam Digital Alarm Clock for Bedrooms - Large 6.5" LED Display with Dimmer, Snooze, 7 Color Night Light, Easy to Set, USB Chargers, Battery Backup, 12/24 Hour for Kids, Boys, Heavy Sleepers(Blue)

ROCAM

Based on 5 reviews Check latest price

Product description

ROCAM CR1008 Digital Alarm Clock which is perfectly designed for all age range, including kids, seniors, the elderly since it is very east to set and the big numbers on the 6.5" LED display are easy to read, even grandma could operate it. With this loud alarm clock you could easily awake and the large full-width Snooze Button gives you 9 more minutes to sleep, especially suitable for heavy sleepers; This alarm clock with Night Light of 7 different Colors so your kids will never afraid of dark at night and helps you do some extra reading, an ideal gift for Students Back to School; The dual USB Chargers at the back allow you to charge your smart phones and laptops at the same time. What's more, the Dimmer Control allow you to adjust the brightness of the red display for protecting your eyes. Get this small alarm clock for bedside and desk, shelf and nightstand of your bedroom, living room, kitchen or office.



Package Content:

1 x ROCAM CR1008 Alarm Clock

1 x User Manual

1 x Power Adapter

1 x Warranty Card



  • SLEEK 6.5" LED DISPLAY WITH BIG SNOOZE BUTTON & DIMMER - With the 6.5" LED digit display and large snooze button on top, waking up just got easier in the morning. The snooze function gives you 9 extra minutes of sleep; The ultra-clear big numbers are easy to read from all angles with 12/24 hour time display and DST setting; The convenient dimmer slider allows display brightness adjusted from 0-100% (dim to bright) enables you to set screen display to your own personal comfort level.
  • EAST TO OPERATE & & DUAL USB CHARGING PORTS - We designed this alarm clock with simple interface and easy controls buttons like big "HOUR" and "MIN" button on the top, the red alarm ON/OFF silder and pause buttons which are very obvious to see and extreme easy to set or cancel the alarm, even the kids, seniors and the elderly can operate it. The dual 5V 1A USB charging output at the back of this digital alarm clock allows you to charge your iPhone, Android smartphones or other smart devices.
  • LOUD ALARM CLOCK WITH VOLUME CONTROL & BATTERY BACKUP ALARM - The alarm buzzer volume for this beside clock could be adjusted from Low-Medium-High level which is perfect for heavy sleepers or hearing impaired. No worry battery backup lets you rest easily. The display will goes blank when the clock is not plug into a standard US 120V AC power outlet but alarm and time settings are maintained and the alarm will still takes effect and sound. Compact size alarm clock for bedroom, office and kitchen.
  • 7 COLORED NIGHT LIGHT - There are 7 bigger than average colored night light that you can choose to light your room: Cobalt Blue, Sky Blue, Green, Oyster White, Beige, Shocking Pink and Violet. For changing the night light color just press and "LIGHT" button on the top and swtich to your favorite color choice. When you not need it just turn it OFF. A great add-on feature when your babies afriad of sleeping dark, when you need to do some reading it can works as a bedside reading lamp.
  • 12-MONTH REPLACEMENT WARRANTY - ROCAM CR1008 Digital Alarm Clock with 12 Months Replacement Warranty. Best gift for your kids, friends, family, parents and lovers for the coming, Black Friday, Cyber Monday, Christmas, Birthday and New Year.

User questions & answers

Question: how big are the numbers
Answer: Thanks for the question, each number on the display is about 2" high and 0.8" wide. And the display brightness could be adjusted so it is very easy to read the time.
Question: Does the dimmer let you make the room pitch black
Answer: NO. You can turn the numbers light down to quite dim but not all the way off! But at most dim, it is hard to see the numbers during the daytime.
Question: Does it keep accurate time
Answer: Yes, this clock has accurate time display and we never receive complaints from customers. Hope this answer is helpful.
Question: how long can the battery last on this clock
Answer: This is depend on the battery brand, capacity and also the times of the clock goes off, but please noted that this clock is not works by battery powered, it works with AC power and the battery is just used for backup the alarms and time also make sure the alarm will rings when power outage. Hope this answer is helpful.

Product features

SIMPLE DESIGN ALARM CLOCK WITH PRACTICAL FUNCTIONS

Every time when you choose an alarm clock are worrying about the time is inaccurately, some of them works fine for the start month but after then it gets faster or slower before you really notice it, we understand this really matters and becomes your first concern. Therefore, we create CR1008 digital alarm clock with precision time display. This ensure you to wake in correct time and never miss any important appointment, never late for school or work.

LARGE DISPLAY AND EASY 0-100% DIMMING

  • The large digit numbers on the 6.5 inch curved-screen LED display are just bright and clear to see from all angles across the room. Without other confusing printing on the display interface makes it a perfect clock for kids, elderly and seniors. The compact size - 6.5"(L) x 1.9"(W) x 3.1"(H) does not occupy much room space, fits perfectly it your bedside desk, nightstand or office table.
  • Most of the alarm clocks way too bright and with no feature to adjust and dim the display, some of them labelled with low-high two level settings isn't much different. This digital alarm clock has 0%-100% dimmer function so users could simply adjust the brightness of the display to their desirable level by the "DIMMER"slider at the back.

GLOW YOUR ROOM WITH 7 COLORED NIGHT LIGHT

This modern alarm clock provides 7 additional colored light options in cobalt blue, sky blue, green, oyster white, beige, shocking pink and violet which are bigger than average. For activating color display just press the LIGHT button on the clock top until first non-white color shows, or you can just turn it OFF when it is not needed.

SPECIFICATION

Display: 6.5'' LED Display

Adapter Output: 5V, 1.2A

USB Charging Port: 5V, 1A

Snooze Duration: 9 Minutes

Adapter Input: AC 100-240V, 50-60Hz

Time Format: 12/24 Hour (24 Hour is Default)

Screen Display Dimmer: 0-100% (from low to high)

Type of Backup Battery: 1.5V AAA Battery x 2 (Not included)

Charging Your Smartphone At Night

The two USB output interface (5V 1A) at the back of the clock allow you to charge your smartphone, ipad or other smart devices at the same time, so you will be able to charge you and your partner's smartphones smoothly while you are sleeping at night, very handy and convenient.

Red Colored Alarm ON/OFF and Pause

With the highlight red color buttons of "ALARM PAUSE" and slider "ALARM ON/OFF", you will no need to sit up to find the buttons to shut off the alarm in the morning, and you don't have to remember to turn on every night the alarm again once you press the alarm pause button in the morning. Life never been so easy with this compact size alarm clock.

Alarm Still On When Power Outage

The ROCAM CR1008 beside alarm clock has got the real alarm battery backup function for power outage, when the clock is unplugged from the outlet, the alarm settings will be maintained and the alarm will still ring at the time you set (the display will go blank to save battery power). Not only a internal time keeper to show the correct time when the power comes back on.

DreamSky Auto Set Digital Alarm Clock with USB Charging Port, 6.6 Inch Large Screen with Time/Date/Temperature Display, Full Range Brightness Dimmer, Auto DST Setting, Snooze, Backup Batteries,12/24Hr

DreamSky

Based on 5 reviews Check latest price
  • Large Display with Full Range Dimmer: 6.6“ Large LCD screen with nice eye care number display. Time, date and temperature display. Almost full range brightness settable (6 levels + auto dim ), you can easily change to have the view bright or dim it to extremely low.
  • Advance autoset time : The alarm clock will set itself to right time, date and temperature immediately once plugged in. The long lasting button cell backup battery (installed ) will holds all settings and ensure the time always be accurate in case of main power interrupted. What you need to do is set your time zone and wake up time. Simple as that. Even miss the right time, you are still able to set it manually.
  • Auto DST and selectable time zone : Automatically adjusts to Daylight Savings Time while set the DST on .Seven USA time zone (EST/ CST/ MST/ PST/AST/HAT/AKT) and one newfoundland time zone NST selectable for your location.
  • Ascending beeping alarm with snooze: Ascending alarm sound wake you up naturally . Additional snooze to counter oversleeping, simply press the snooze button once and go back to sleep. 8 minutes later the alarm will ring again .
  • Plug in clock with USB charging port: Powered by USB port by plug in outlet. Extra USB charging port for charging cellphone and other electronic device. 3*AA batteries( not included) as backup, which will store the setting and keep the time works in case of main power outage.

User questions & answers

Question: Is it possible to turn off the DST option
Answer: Yes, the DST can be turned off.
Question: What is the small cord with tiny end on backside of clock
Answer: The clock is electric, it is a USB cord that goes into a plug that goes into the outlet.
Question: What is the warrranty information
Answer: Seller warranty: One year free replacement.
Question: Is the time supposed to set automatically
Answer: No. What they call auto time set is that they set the time at the factory. This clock will NOT autoset to the atomic clock signal broadcast from Fort Collins, Colorado.

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