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battery backup (ups)

Home Battery Backup Systems

A battery backup system is a device that provides power to your home in the event of a power outage. It's a great way to keep your family safe and warm during a power outage. Browse the top-ranked list of home battery backup systems below along with associated reviews and opinions.

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  1. EcoFlow - DELTA Pro 3 Portable Whole Home Power Station (Expandable up to 12kW/48kWh) (4096 Wh Capacity) - Galactic Silver

    SKU: J36C7V4XY5

    Product Description

    A portable galactic silver power station with 4096Wh LFP battery, 4000W output, and app management.
    See all Portable Chargers & Power Banks
    Your price for this item is $2,599.00

  2. EcoFlow - DELTA PRO 3600Wh Portable Home Battery (3600 Wh Capacity) - Black

    SKU: J36C7VW54W

    Product Description

    A powerful black portable home battery with 3600Wh capacity and 3600W AC output for backup and travel.
    See all Portable Chargers & Power Banks
    Your price for this item is $1,899.00
    Save $500
    The previous price was $2,399.00

  3. EcoFlow - Smart Home Panel 2 - White

    SKU: J36C7VZ9HJ

    Product Description

    A white smart home panel that manages energy use, automates backup, and forecasts outages for reliable protection.
    See all Amp Accessories & Installation Parts
    Your price for this item is $1,599.00

  4. EcoFlow - DELTA Pro 3600Wh Smart Extra Battery

    SKU: J36C7VWZQS

    Product Description

    A rechargeable black extra battery offering 3600Wh capacity and fast charging for home backup or off-grid use.
    See all Solar Generators & Power Banks
    Your price for this item is $1,199.00
    Save $100
    The previous price was $1,299.00

  5. EcoFlow - DELTA 3 Extra Battery

    SKU: J36C7V49FS

    Product Description

    A modular silver battery accessory that expands storage and runtime for DELTA 3 series portable power stations.
    See all Solar Generators & Power Banks
    Your price for this item is $389.00
    Save $210
    The previous price was $599.00

  6. EcoFlow - DELTA 3 Plus (1024 Wh Capacity) - Silver

    SKU: J36C7V4947

    Product Description

    A powerful silver portable generator supporting 99% of household devices, ideal for home backup and outdoor use.
    See all Portable Chargers & Power Banks
    Your price for this item is $649.00
    Save $50
    The previous price was $699.00

  7. EcoFlow - DELTA PRO ULTRA 6000Wh Battery

    SKU: J36C7VZRKL

    Product Description

    A rechargeable black LiFePO4 battery backup providing 120 volts for home, emergency, camping, and RV use.
    See all Solar Generators & Power Banks
    Your price for this item is $2,099.00
    Save $600
    The previous price was $2,699.00

  8. EcoFlow - DELTA Pro 3 Extra Battery (4096 Wh Capacity)

    SKU: J36C7V4X9J

    Product Description

    A silver, long-lasting LFP battery with 4096Wh capacity, designed for expandable home or indoor power backup.
    See all Solar Generators & Power Banks
    Your price for this item is $1,899.00
    Save $700
    The previous price was $2,599.00

  9. Ooma - Telo LTE Landline Home Phone Service with Battery Backup - Black

    SKU: J3G453663F

    Product Description

    A black landline home phone service with LTE connectivity, battery backup, call blocking, and location-specific 911.
    See all VoIP
    Your price for this item is $99.99
    Save $30
    The previous price was $129.99

  10. EcoFlow - Delta Pro Ultra Inverter - Silver

    SKU: J36C7VZS2H

    Product Description

    A silver high-capacity inverter with scalable output, online UPS, and advanced cooling for reliable home energy management.
    See all Power Inverters
    Your price for this item is $2,499.00
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In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.