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Battery Backup Replacement Batteries

The best backup batteries for your devices are the ones that last the longest and work when you need them. Whether you're looking for a replacement battery for your smoke alarm, security system, or other device, we've got you covered. Browse the top-ranked list of battery backup replacement batteries below along with associated reviews and opinions.

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  1. Ring - Quick Release Rechargeable Lithium-ion Battery for Select Devices

    SKU: J36CLVPSYP

    Great quality and price! I love Best Buy for their great customer service!...I love it and the price is great great quality I can't complain...Best Purchase

    Product Description

    A rechargeable black and silver lithium-ion battery pack offering quick-release backup power for select Ring devices.
    See all Home Security Accessories
    Your price for this item is $34.99
  2. Vertiv - Liebert Battery Kit - Unknown

    SKU: J37HZ77VS4

    Product Description

    A reliable replacement battery kit designed to maintain uninterrupted power for your UPS backup system.
    See all Battery Backup (UPS)
    Your price for this item is $299.10
    Save $58
    The previous price was $358.00
  3. Your price for this item is $95.20
  4. Eaton Tripp Lite Series UPS Replacement Battery Cartridge for SUINT1500LCD2U UPS System, 36V - 36 V DC - 3 Year Minimum - Unknown

    SKU: J78C5ZPLGC

    Product Description

    A reliable 36V DC replacement battery cartridge designed for extended UPS backup and a 3-year minimum lifespan.
    See all Battery Backup (UPS)
    Your price for this item is $366.24
    Save $54
    The previous price was $421.20
  5. Tripp Lite - by Eaton UPS Battery Replacement for Select SMART1200LCD SMART1500LCD SMART1500LCDXL SMX1500LCD UPS Systems

    SKU: J78C5ZSW68

    Product Description

    A reliable replacement battery that restores backup power to compatible Tripp Lite UPS systems with expired batteries.
    See all Household Batteries
    Your price for this item is $245.37
    Save $12
    The previous price was $257.64
  6. Rechargeable Lithium-Ion Replacement Battery for Arlo Ultra and Pro Cameras

    SKU: JJ8QV84T83

    Works great. Exact replacement for Ultra-line batteries. Fits perfect and works well.

    Product Description

    A rechargeable black battery providing reliable backup power for compatible Arlo Ultra and Pro cameras.
    See all All Batteries & Power
    Your price for this item is $49.99
  7. EcoFlow - DELTA 3 Extra Battery

    SKU: J36C7V49FS

    A great addition to double your power but keep the portability.

    Product Description

    A modular silver battery accessory that expands storage and runtime for DELTA 3 series portable power stations.
    See all Solar Panels & Batteries
    Your price for this item is $599.00

FAQ

Battery backup replacement batteries are commonly compatible with uninterruptible power supplies (UPS), home security systems, medical equipment, and select networking devices. Always check your device's specifications to ensure compatibility.

You can typically find the model number on your existing battery or in your device’s user manual. Matching the model number ensures you select the right replacement for optimal performance.

Most replacement batteries are designed for easy installation and do not require special tools. However, some devices may need a screwdriver or similar basic tool to access the battery compartment.

Yes, most battery backup batteries are recyclable. Many local recycling centers and electronics retailers offer battery recycling services to help you dispose of old batteries responsibly.

Replacement frequency depends on usage and battery type, but most battery backup batteries should be replaced every 3–5 years to ensure reliable performance during power outages.