10 Best Alarm Clock Electric With Battery Backup of 2025

Tested and Reviewed: Top 10 Alarm Clock Electric With Battery Backup deals with expert ratings from 8.1 to a perfect 10

June 2025 Edition

Editor's Choice

9.7

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DreamSky

DreamSky Alarm Clocks for Bedrooms with Battery Backup, Auto Set Digital Clock with Date and Day of Week, Temperature, USB Port, Auto DST, Dimmer, 12/24H

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Editor's bottom line:

“This alarm clock electric with battery backup is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Large Display with Full Range Dimmer: 5 inches 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.
Auto Set 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 x AAA batteries( not included) as backup, which will store the setting and keep the time works in case of main power outage.

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Picked by 300 people today

9.5

SHARP

SHARP Digital Alarm Clock with Keyboard Style Controls, Battery Back-up, Easy to Use with Simple Operation, Black Case with Red LED Display

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Main Highlights

Easy to Use Digital Alarm Clock with Simple Keyboard Controls - This clock has been designed with absolute simplicity in mind and is very easy to operate. Perfect for adults, children, teens, seniors and the elderly.
Alarm and Snooze - The bedside alarm clock comes with a loud alarm to wake you up. There is also a 9 minute snooze that can be continually pressed until the alarm itself is switched off
9 Minute Snooze - Get a few more minutes of sleep with built in snooze function for a few more minutes of sleep!
Alarm Battery Back Up - (requires 2x AAA battery, sold separately) Sleep with confidence knowing that your alarm will continue to function even in the event of a power outage. The display will be lit after power is restored.
Easy to Read Illuminated Red LED Digits - Easy to Read Red Numbers on the clock are very clear with extra bright quality, See from across the room or even without glasses in the middle of the night!

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9.5

Amazon Basics

Amazon Basics Small Digital Oval Alarm Clock With LED Display, Nightlight & Battery Backup, Black, 4.5 x 3.5 x 2.4 Inches

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Main Highlights

Digital alarm clock with a 0.7-inch green LED display for easily checking the time at a glance
Built-in nightlight gently illuminates a dark room
Repeating snooze function makes it possible to sleep a little longer
AC powered with integrated power supply. Batteries may be used as a backup power source to ensure time and alarms are retained in memory for 8 hours (refer to User Manual for details)
Measures 4.5 x 3.5 x 2.4 inches (LxWxH); weighs 0.4 pounds (6.6 oz) Note: Batteries are not included

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9.2

Peakeep

Peakeep Small Digital Alarm Clock Plug in for Bedrooms Bedside, Tiny Electric Clock Large Big Numbers Display with Battery Backup for Desk Table, 6 Dimmers, 5 Adjustable Alarm Volumes (Blue)

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Main Highlights

: Considering about practicality, durability and aesthetics, Peakeep, as a leading brand of alarm clocks, designed this LED clock with compact size of 5 1/2 (W) x 2 1/2 (H) inch. This small digital clock for bedroom doesn't take up much space and very easy to carry, making it a great choice as a travel digital alarm clock,desktop clock, nightstand clock and table clock.
: This simple alarm clock designed with a battery backup function, which 4AAA batteries can keep all the setting and the alarm works well during the power outage, taking no risk of missing any important schedule. Besides, it's useful and distinctive to check the time by pressing top button, which will illuminate display for 20 seconds during power outages. : () . .
: As a modern alarm clock for bedrooms , this brightness clock has 5 adjustable dimmer levels+OFF to satisfy different needs for brightness. The level of brightness does not distract you from sleeping, ensuring that you can clearly see the time cross the room and easily check the time at night with its large number. More importantly, this electronic clock can protect your eyesight from harm with adjustable dimmer.
: Different people have different needs regarding alarm volume and snooze time. In order to wake you up naturally and gently, not suddenly, this dimmer clock has 5 alarm volumes to choose from, ranging from 55-90 dB. If you have trouble getting out of bed, the 9-minute snooze function provides the perfect wake-up cushion.
é : This newly designed simple digital alarm clock retains the advantages of a digital alarm clock: easy to set, accurate time keeping, long life, and most importantly a small size (only 5 inch display). Its minimalist design not only serves as a travel alarm clock, tabletop clock, but also decorates the room. No matter what the holiday, it is a good choice as a gift to everyone.

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Best Value

9.0

Save 21%

Peakeep

Peakeep Digital Alarm Clock for Bedroom Bedside, Loud Alarm Clock for Heavy Sleepers, Large Big LED Numbers for Seniors, Battery Backup Plug in Electric Clock with USB Charger (Blue)

21% OffFree Shipping

Main Highlights

: [Peakeep] gathers all features you rely on a clock for your bedroom, such as precise and clearly visible numbers, a loud alarm with snooze and volume control, adjustable display brightness, 1 USB charger, and even a backup battery alarm in case of power outages.
: 2-inch height of large digits can be seen from a greater distance, providing a clear and easy way to keep track of time. It goes without saying that big numbers make it easier for seniors/elderly with poor eyesight or those who struggle to read small fonts or simply prefer a larger display to read the time.
: 5 settings of volume control enable the alarm from 60 Db, 70 Db, 80 Db, 90 Db, 103 Db, it can be loud for heavy sleepers. It also allows light sleepers to set the alarm at a low volume. 9-min snooze can be helpful if you like to catch a few extra minutes of sleep in the morning. , , .
: 5 different brightness settings ensure clock time is always visible in various lighting conditions. You can customize the brightness to your preference to get eye comfort and improve sleep by adjusting the display to a lower brightness level or completely off at night.
: With the power source AC/DC adapter included, this digital LED clock is able to run smoothly and accurately, an absolute must for anyone who values punctuality and reliability. 2 AAA batteries (not provided) can memorize clock settings and trigger the alarm when power outages, you wont oversleep or worry about resetting the time. : .
: The clock can charge your phone or other devices while you sleep, this can be convenient and save you some space on your nightstand.
: When alarm goes off, pressing any of the buttons at back can pause the alarm instead of having to switch it off with a sepecific button.

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8.8

PPLEE

Digital Dual Alarm Clock for Bedroom, Large Display Bedside with Battery Backup, USB Phone Charger, Volume, Dimmer, Easy to Set Loud LED Heavy Sleepers Kid Senior Teen Boy Girl Kitchen

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Main Highlights

DUAL ALARM CLOCK: This can set 2 different alarms, convenient for family members with a different schedule. A with enough practical functions for daily use: 4-level adjustable alarm volume, 5-level digits brightness dimmer, built-in USB charging port, SNOOZE function for extra 9 mins sleep, outlet operated with battery backup settings, 12/24H & DST function also available.
LARGE DISPLAY WITH ADJUSTABLE VOLUME & DIMMER: with 7" LED for vision impaired people, easy to check time from across the room. Alarm volume can be adjusted to 4 levels according to your depth of sleep, louder for heavy sleepers while slight for light sleepers. 5 level adjustable digits brightness dimmer for easy reading, brighter for day while darker for night.
NO WORRY BATTERY BACKUP SETTINGS WITH SNOOZE: This is outlet operated for ALL functions working, such as USB charging, alarm and time display. time and alarm settings as well as trigger the alarm when power failure. Simply press the SNOOZE button on the top to get extra 9 min sleep before it alerts again.
USB PHONE CHARGER & 12/24H TIME FORMAT & DST: allows you to charge your smartphone, iPad or other smart devices, no need to plug them in the wall. 12 or 24 hour time format &Daylight Saving Time is also available. Clear understandable buttons make it , perfect for . Stylish appearance is suitable for too!
: This cool stuff is not only suitable for your room, but also a great gift for Christmas, New Year or Birthday. It has no limitation, you can give it to kids or seniors, boys or girls, friends or families. PPLEE also provides 365 days product warranty, any questions, pls contact us via Amazon, we will respond as soon as possible.

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8.6

Save 20%

Odokee

Odokee Digital Dual Alarm Clock for Bedroom, Easy to Set, 0-100% Dimmer, USB Charger, 5 Sounds Adjustable Volume, Weekday/Weekend Mode, Snooze, 12/24Hr, Battery Backup, Compact for Bedside(Blue)

20% OffFree Shipping

Main Highlights

EASY TO SETUP & 0-100% DIMMABLE DISPLAY - All buttons do one task and are clearly labeled makes setting the time or alarm extremely intuitive and straightforward. Large easy to read blue LED digits(1.6-inch tall) that can be easily viewed from a distance and the brightness can be easily adjusted from very bright to fully dark with the simple dimmer dial, which is nice for sleeping so you don't have a bright light in the room. 12 or 24 hour time display optional.
CUSTOMIZABLE DUAL ALARM - Set two separate alarms to suit your different schedules and 7-5-2 alarm mode lets you set alarms for every day, weekdays or weekend. Wake up in the morning to one of the 5 built-in alarm tones (Beep, Birds Chirping, Buzzer, Soft Music, or Siren), which begins quietly and gradually becomes louder up to the level(30dB-110dB optional) you set, so you dont get abruptly woken up.
EASY SNOOZE & EASY TO TURN ON/OFF ALARMS - With its big and easy to reach Snooze button, you can get 9 minutes extra rest without fumbling around. And the two buttons to turn the alarms off are easy to reach from the front even when you are half-asleep. And with a large 4.9-inch display but compact size(5.3"x2.9"x1.95") makes it easy-to-read but space-saving, perfect for your bedroom, bedside, nightstand, desk, shelf, table or living room.
USB PORT FOR CHARGING & BATTERY BACKUP - 1 USB port located at the back will charge your phone or other mobile device while you sleep. 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, but alarms are also supported (USB will not work). Please be noted that the clock may drain batteries quickly, so ONLY use as a backup but isn't viable for regular use.
BUY WITH CONFIDENCE & GIFT IDEAS - All Odokee products offer a hassle-free 18-month warranty, easy return policy and friendly customer service. The stylish design makes it both functional and decorative, so its a great gift for kids, seniors, teens, boys, girls, friends or families.

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8.3

DreamSky

DreamSky Wooden Digital Alarm Clocks for Bedrooms - Electric Desk Clock with Large Numbers, USB Port, Loud Alarm for Heavy Sleepers, Adjustable Volume, Dimmer, Snooze, DST, 12/24H, Wood Décor (Brown)

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Main Highlights

Basic Wooden Alarm Clock with Easy to See Big Numbers: the 1.8 inches large numbers on this 6.6 inches compact alarm clock are super easy to read from across the room, no complex setting, easy to program, which is an ideal desk clock for kids, seniors, the elderlys and adults.
5 Level Dimmable Brightness Dimmer: the display brightness of this digital clock is 5 level adjustable plus an OFF option, which is vision friendly, no glaring light at night yet still bright enough by day. Time format is standard time and military time (12/24HR) switchable.
Battery Only Operates Alarm for Power Failure: the battery function for this bedroom alarm clock will trigger the alarm during power outage, take no risk of missing your vital schedule. The display won't light up with battery power only. Requires 2 AAA Alkaline batteries (not included).
Adjustable Alarm Volume with Snooze Button on the Top: the alarm volume is 5 level customizable from very low for light sleepers to extra loud for heavy sleepers adults. Alarm lasts for 2 minutes and a dedicated Snooze button on the top helps you get extra 9 mintues sleep easily.
Plug in Alarm Clock with USB Charger: the bedside clock runs on electricity for normal time display and the AC adapter is supplied. A handy USB Charging Port helps you charge your smart devices and other gadgets without looking for your adapter and other outlet.
Bedroom Accessories Wood Décoration: the concise and clean LED digits on the sleek wooden face make up this minimalist wooden digital clocks for living room décor which is also perfect for your TV stand and cable box while serves as a decent and beautiful gifts for your loved one.
Simple Alarm Clock with Manual DST: the table clock comes with a manual DST button that would save your time when spring or fall time arrives, no setting hassle, just press the DST button, DST shows up on the display, time goes on hour forward, DST off, time goes one hour back.
IMPORTANT: please note that the electric alarm clock is NOT battery powered and requires adapter for normal performance. Battery only operates alarm during power outage.

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8.1

SHARP

SHARP Digital Alarm with AccuSet - Automatic Smart Clock, Never Needs Setting - Great for Seniors, Kids, and Everyone who Doesn't Want to Set a Clock! Black Case with Red LEDs

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Main Highlights

AccuSet Automatic Time Set - The clock is pre-programed with the time so there is no need to worry about setting buttons. Just select your time zone at the bottom of the clock and turn on the DST if applicable. Plug the clock in to an approved electrical source.
Quick Daylight Savings Time (DST) Adjustment - For quick adjustment for Daylight Savings Time, slide the DST switch at the bottom of the clock to ON to add and hour (+1 hr.). For Standard Time slide switch to OFF to subtract an hour (-1 hr.)
High/Low Dimmer control - Adjust the display brightness to your liking with the high or low dimmer control.
Back up Battery -The button cell battery CR2032 is pre-installed and is used for the back up battery and the time settings. It is in a screw-secured cabinet at the bottom of the clock. This battery will last for several years.
Time Zone Selection - The default time zone is Eastern Standard Time. Before you plug in the set your time zone on the bottom of the clock.

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8.1

Save 20%

uscce

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

20% OffFree Shipping

Main Highlights

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 1 to 15). 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).
QUICK AND EASY TO SETUP - Unique designed large rotary button as a dial, making setting time/alarm easier and faster. All buttons and dials are clearly labeled with function or icon, and everything is clearly displayed on the screen. So it is a breeze to use right out of the box and change settings.
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 dont hesitate to contact us - we are always here to help.

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Our Best Overall Choice

Best Choice

9.7

DreamSky

DreamSky Alarm Clocks for Bedrooms with Battery Backup, Auto Set Digital Clock with Date and Day of Week, Temperature, USB Port, Auto DST, Dimmer, 12/24H

13% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Large Display with Full Range Dimmer: 5 inches 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.
Auto Set 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 x AAA batteries( not included) as backup, which will store the setting and keep the time works in case of main power outage.

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