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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!

  • Power PRC-12100 12V 75Ah UPS Replacement Battery
    $243.69 - $243.69
    $243.69
    $243.69 - $243.69
    $243.69

    Power PRC-12100 12V 75Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC-12100 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $243.69 - $243.69
    $243.69
    $243.69 - $243.69
    $243.69
  • Power Sonic PS1252 12V 5Ah UPS Replacement Battery
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99

    Power Sonic PS1252 12V 5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power Sonic PS1252 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free ...

    View full details
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99
  • Power Sonic PS1242 OPTION 12V 5Ah UPS Replacement Battery
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99

    Power Sonic PS1242 OPTION 12V 5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power Sonic PS1242 OPTION UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenanc...

    View full details
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99
  • Power PM12-5 12V 5Ah UPS Replacement Battery
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99

    Power PM12-5 12V 5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PM12-5 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99
  • Power ES4-12 12V 5Ah UPS Replacement Battery
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99

    Power ES4-12 12V 5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power ES4-12 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $19.99 - $19.99
    $19.99
    $19.99 - $19.99
    $19.99
  • Power TC-1255S 12V 55Ah UPS Replacement Battery
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89

    Power TC-1255S 12V 55Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power TC-1255S UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

    View full details
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89
  • Power PRC-1255 12V 55Ah UPS Replacement Battery
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89

    Power PRC-1255 12V 55Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC-1255 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

    View full details
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89
  • Power PRC1250S 12V 55Ah UPS Replacement Battery
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89

    Power PRC1250S 12V 55Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC1250S UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

    View full details
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89
  • Power PRC-1250 12V 55Ah UPS Replacement Battery
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89

    Power PRC-1250 12V 55Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC-1250 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

    View full details
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89
  • Power PRC-1255S 12V 55Ah UPS Replacement Battery
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89

    Power PRC-1255S 12V 55Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC-1255S UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89
  • Power PRC1250XL 12V 55Ah UPS Replacement Battery
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89

    Power PRC1250XL 12V 55Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC1250XL UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89
  • Power PRC-1250S 12V 55Ah UPS Replacement Battery
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89

    Power PRC-1250S 12V 55Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC-1250S UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $191.89 - $191.89
    $191.89
    $191.89 - $191.89
    $191.89
  • Power TC-1235X 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Power TC-1235X 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power TC-1235X UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Power TC-1235L 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Power TC-1235L 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power TC-1235L UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Power PM12-33 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Power PM12-33 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PM12-33 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM t...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Power PM12-33FC 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Power PM12-33FC 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PM12-33FC UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Power PRC-1235L 12V 35Ah UPS Replacement Battery
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29

    Power PRC-1235L 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC-1235L UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $109.29 - $109.29
    $109.29
    $109.29 - $109.29
    $109.29
  • Power PM 12-3.3 12V 3.2Ah UPS Replacement Battery
    $18.89 - $18.89
    $18.89
    $18.89 - $18.89
    $18.89

    Power PM 12-3.3 12V 3.2Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PM 12-3.3 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $18.89 - $18.89
    $18.89
    $18.89 - $18.89
    $18.89
  • Power PM12-26 12V 26Ah UPS Replacement Battery
    $99.29 - $99.29
    $99.29
    $99.29 - $99.29
    $99.29

    Power PM12-26 12V 26Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PM12-26 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM t...

    View full details
    $99.29 - $99.29
    $99.29
    $99.29 - $99.29
    $99.29
  • Power PRC-1225X 12V 26Ah UPS Replacement Battery
    $99.29 - $99.29
    $99.29
    $99.29 - $99.29
    $99.29

    Power PRC-1225X 12V 26Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PRC-1225X UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $99.29 - $99.29
    $99.29
    $99.29 - $99.29
    $99.29
  • Power ES17-12 12V 18Ah UPS Replacement Battery
    $57.19 - $57.19
    $57.19
    $57.19 - $57.19
    $57.19

    Power ES17-12 12V 18Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power ES17-12 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM t...

    View full details
    $57.19 - $57.19
    $57.19
    $57.19 - $57.19
    $57.19
  • Power ES15-12 12V 18Ah UPS Replacement Battery
    $57.19 - $57.19
    $57.19
    $57.19 - $57.19
    $57.19

    Power ES15-12 12V 18Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power ES15-12 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM t...

    View full details
    $57.19 - $57.19
    $57.19
    $57.19 - $57.19
    $57.19
  • Power Sonic Ps12120f2 12V 12Ah UPS Replacement Battery
    $38.69 - $38.69
    $38.69
    $38.69 - $38.69
    $38.69

    Power Sonic Ps12120f2 12V 12Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power Sonic Ps12120f2 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance fr...

    View full details
    $38.69 - $38.69
    $38.69
    $38.69 - $38.69
    $38.69
  • Power PM12-12 with .25 terminals 12V 12Ah UPS Replacement Battery
    $38.69 - $38.69
    $38.69
    $38.69 - $38.69
    $38.69

    Power PM12-12 with .25 terminals 12V 12Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Power PM12-12 with .25 terminals UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mai...

    View full details
    $38.69 - $38.69
    $38.69
    $38.69 - $38.69
    $38.69

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.