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BatteryClerk Prime FAST 1-2 day shipping to most of Canada
BatteryClerk Prime FAST 1-2 day shipping to most of Canada

UPS Batteries

Power outages shouldn’t mean downtime for your business. At BatteryClerk, we provide a wide range of high-quality replacement batteries for UPS systems, designed to keep your critical equipment running seamlessly during unexpected power disruptions. Our inventory features top brands, and our team of experts is here to help you find the perfect battery for your specific UPS model. With unbeatable prices and fast, reliable shipping, BatteryClerk ensures your business stays protected and operational. Don’t let power interruptions slow you down—shop now and keep your operations running smoothly!

  • Best Technologies LI 5.0KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies LI 5.0KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 5.0KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintena...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies LI 3.0KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies LI 3.0KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 3.0KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintena...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies LI 2.5KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies LI 2.5KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 2.5KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintena...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies LI 2.0KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies LI 2.0KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 2.0KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintena...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies LI 1.8KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies LI 1.8KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1.8KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintena...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies LI 1.7KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies LI 1.7KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1.7KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintena...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS MX 1KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS MX 1KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS MX 1KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Ma...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS ME 3.1KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS ME 3.1KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS ME 3.1KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS ME 2.1KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS ME 2.1KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS ME 2.1KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS MD 2KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS MD 2KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS MD 2KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Ma...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS MD 1.5KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS MD 1.5KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS MD 1.5KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS FER 3.1KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS FER 3.1KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FER 3.1KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS FER 1.8KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS FER 1.8KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FER 1.8KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS FE 500VA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS FE 500VA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FE 500VA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely M...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS FE 4.3KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS FE 4.3KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FE 4.3KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS FE 3.1KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS FE 3.1KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FE 3.1KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS FE 10KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS FE 10KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FE 10KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely M...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS FD 4.3KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS FD 4.3KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FD 4.3KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies FERRUPS FD 10KVA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies FERRUPS FD 10KVA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FD 10KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely M...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies 500VA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies 500VA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies 500VA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies 350VA 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Best Technologies 350VA 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies 350VA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Best Technologies Unity UTK8 12V 75Ah UPS Replacement Battery
    $254.59 - $254.59
    $254.59
    $254.59 - $254.59
    $254.59

    Best Technologies Unity UTK8 12V 75Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies Unity UTK8 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mainten...

    View full details
    $254.59 - $254.59
    $254.59
    $254.59 - $254.59
    $254.59
  • Best Technologies FERRUPS FE 7KVA 12V 75Ah UPS Replacement Battery
    $254.59 - $254.59
    $254.59
    $254.59 - $254.59
    $254.59

    Best Technologies FERRUPS FE 7KVA 12V 75Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FE 7KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Ma...

    View full details
    $254.59 - $254.59
    $254.59
    $254.59 - $254.59
    $254.59
  • Best Technologies FERRUPS FE 5.3KVA 12V 75Ah UPS Replacement Battery
    $254.59 - $254.59
    $254.59
    $254.59 - $254.59
    $254.59

    Best Technologies FERRUPS FE 5.3KVA 12V 75Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies FERRUPS FE 5.3KVA UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

    View full details
    $254.59 - $254.59
    $254.59
    $254.59 - $254.59
    $254.59

Keep your data safe during emergencies and downtime with a UPS device. Just as important, keep your UPS device running with a reliable replacement or backup battery. BatteryClerk offers a wide range of affordable and reliable UPS replacement batteries for many top brands.

UPS Battery Replacement

UPS Battery Replacement

View our guide for installing UPS replacement batteries to ensure you get the most out of your new AJC brand battery.