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BatteryClerk Prime FAST 1-2 day shipping to most of the USA
BatteryClerk Prime FAST 1-2 day shipping to most of the USA

UPS Batteries

Don't let a power outage bring your business to a halt! BatteryClerk offers a wide selection of high-quality replacement batteries for UPS systems, ensuring your critical equipment stays protected and operational during power disruptions. We carry top brands and provide expert advice to help you find the right battery for your specific UPS model. With competitive prices and fast shipping, BatteryClerk makes it easy to keep your business running smoothly.

  • Best Technologies LI 360 BAT-0060 12V 4.5Ah UPS Replacement Battery
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49

    Best Technologies LI 360 BAT-0060 12V 4.5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 360 BAT-0060 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Ma...

    View full details
    $16.49 - $16.49
    $16.49
    $16.49 - $16.49
    $16.49
  • Best Technologies Unity UTK8 12V 75Ah UPS Replacement Battery
    $179.59 - $179.59
    $179.59
    $179.59 - $179.59
    $179.59

    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
    $179.59 - $179.59
    $179.59
    $179.59 - $179.59
    $179.59
  • Best Technologies Unity UT5K 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    Best Technologies Unity UT5K 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies Unity UT5K UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mainten...

    View full details
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89
  • Best Technologies Unity UT3K 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    Best Technologies Unity UT3K 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies Unity UT3K UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mainten...

    View full details
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89
  • Best Technologies Patriot SPS850 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    Best Technologies Patriot SPS850 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies Patriot SPS850 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mai...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • Best Technologies Patriot SPS650 6V 12Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    Best Technologies Patriot SPS650 6V 12Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies Patriot SPS650 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mai...

    View full details
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Best Technologies Patriot SPI600 6V 12Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    Best Technologies Patriot SPI600 6V 12Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies Patriot SPI600 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mai...

    View full details
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Best Technologies Patriot II Pro 750 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    Best Technologies Patriot II Pro 750 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies Patriot II Pro 750 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • Best Technologies Patriot II Pro 400 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Best Technologies Patriot II Pro 400 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies Patriot II Pro 400 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Best Technologies LI 750 (Fortress) 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Best Technologies LI 750 (Fortress) 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 750 (Fortress) UPS Battery Exact OEM replacement guaranteed to fit easily and precisely ...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Best Technologies LI 750 (Fortress Rack Mount) 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    Best Technologies LI 750 (Fortress Rack Mount) 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 750 (Fortress Rack Mount) UPS Battery Exact OEM replacement guaranteed to fit easily and...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • Best Technologies LI 5.0KVA 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    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
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89
  • Best Technologies LI 3.0KVA 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    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
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89
  • Best Technologies LI 2.5KVA 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    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
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89
  • Best Technologies LI 2.0KVA 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    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
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89
  • Best Technologies LI 1800 6V 12Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    Best Technologies LI 1800 6V 12Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1800 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenanc...

    View full details
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Best Technologies LI 1425 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Best Technologies LI 1425 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1425 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenanc...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Best Technologies LI 1420 (Fortress) 12V 18Ah UPS Replacement Battery
    $52.39 - $52.39
    $52.39
    $52.39 - $52.39
    $52.39

    Best Technologies LI 1420 (Fortress) 12V 18Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1420 (Fortress) UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

    View full details
    $52.39 - $52.39
    $52.39
    $52.39 - $52.39
    $52.39
  • Best Technologies LI 1050 (Fortress) 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Best Technologies LI 1050 (Fortress) 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1050 (Fortress) UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Best Technologies LI 1050 (Fortress Rack Mount) 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Best Technologies LI 1050 (Fortress Rack Mount) 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1050 (Fortress Rack Mount) UPS Battery Exact OEM replacement guaranteed to fit easily an...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Best Technologies LI 1020 (Fortress) 6V 12Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    Best Technologies LI 1020 (Fortress) 6V 12Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1020 (Fortress) UPS Battery Exact OEM replacement guaranteed to fit easily and precisely...

    View full details
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Best Technologies LI 1020 (Fortress II) 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    Best Technologies LI 1020 (Fortress II) 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Best Technologies LI 1020 (Fortress II) UPS Battery Exact OEM replacement guaranteed to fit easily and precis...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • Best Technologies LI 1.8KVA 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    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
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89
  • Best Technologies LI 1.7KVA 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    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
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89