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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.

  • OPTI-UPS TS2250B 12V 8Ah UPS Replacement Battery
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79

    OPTI-UPS TS2250B 12V 8Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS TS2250B UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AG...

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    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79
  • OPTI-UPS VS575C 12V 3.2Ah UPS Replacement Battery
    $14.89 - $14.89
    $14.89
    $14.89 - $14.89
    $14.89

    OPTI-UPS VS575C 12V 3.2Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS VS575C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

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    $14.89 - $14.89
    $14.89
    $14.89 - $14.89
    $14.89
  • OPTI-UPS TS1700B 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    OPTI-UPS TS1700B 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS TS1700B UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AG...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • OPTI-UPS ES1500C-RM 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    OPTI-UPS ES1500C-RM 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS ES1500C-RM UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • OPTI-UPS ES1500C 12V 8Ah UPS Replacement Battery
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79

    OPTI-UPS ES1500C 12V 8Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS ES1500C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AG...

    View full details
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79
  • OPTI-UPS ES1000C-RM 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    OPTI-UPS ES1000C-RM 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS ES1000C-RM UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • OPTI-UPS ES1000C 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    OPTI-UPS ES1000C 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS ES1000C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AG...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • OPTI-UPS CS730B 6V 4.5Ah UPS Replacement Battery
    $8.59 - $8.59
    $8.59
    $8.59 - $8.59
    $8.59

    OPTI-UPS CS730B 6V 4.5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS CS730B UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

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    $8.59 - $8.59
    $8.59
    $8.59 - $8.59
    $8.59
  • OPTI-UPS GNL1500P 12V 35Ah UPS Replacement Battery
    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89

    OPTI-UPS GNL1500P 12V 35Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS GNL1500P UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free A...

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    $92.89 - $92.89
    $92.89
    $92.89 - $92.89
    $92.89
  • OPTI-UPS Thunder Shield Series TS650 TS650B 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    OPTI-UPS Thunder Shield Series TS650 TS650B 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS Thunder Shield Series TS650 TS650B UPS Battery Exact OEM replacement guaranteed to fit easily and pr...

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    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • OPTI-UPS Thunder Shield Series TS1700 TS1700B 12V 8Ah UPS Replacement Battery
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79

    OPTI-UPS Thunder Shield Series TS1700 TS1700B 12V 8Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS Thunder Shield Series TS1700 TS1700B UPS Battery Exact OEM replacement guaranteed to fit easily and ...

    View full details
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79
  • OPTI-UPS PS500 / 500PS 12V 5Ah UPS Replacement Battery
    $16.99 - $16.99
    $16.99
    $16.99 - $16.99
    $16.99

    OPTI-UPS PS500 / 500PS 12V 5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS PS500 500PS UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance fre...

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    $16.99 - $16.99
    $16.99
    $16.99 - $16.99
    $16.99
  • OPTI-UPS Power Series PS800B 12V 5Ah UPS Replacement Battery
    $16.99 - $16.99
    $16.99
    $16.99 - $16.99
    $16.99

    OPTI-UPS Power Series PS800B 12V 5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS Power Series PS800B UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mainten...

    View full details
    $16.99 - $16.99
    $16.99
    $16.99 - $16.99
    $16.99
  • OPTI-UPS ES800C 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    OPTI-UPS ES800C 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS ES800C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • OPTI-UPS ES1500C TowerRM 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    OPTI-UPS ES1500C TowerRM 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS ES1500C TowerRM UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • OPTI-UPS ES550C-USB 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    OPTI-UPS ES550C-USB 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS ES550C-USB UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • OPTI-UPS Enhanced Series ES800C RBAT-9 12V 8Ah UPS Replacement Battery
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79

    OPTI-UPS Enhanced Series ES800C RBAT-9 12V 8Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS Enhanced Series ES800C RBAT-9 UPS Battery Exact OEM replacement guaranteed to fit easily and precise...

    View full details
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79
  • OPTI-UPS Enhanced Series ES550C RBAT-1 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    OPTI-UPS Enhanced Series ES550C RBAT-1 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS Enhanced Series ES550C RBAT-1 UPS Battery Exact OEM replacement guaranteed to fit easily and precise...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • OPTI-UPS Enhanced Series ES550C RBAT-1 12V 8Ah UPS Replacement Battery
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79

    OPTI-UPS Enhanced Series ES550C RBAT-1 12V 8Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS Enhanced Series ES550C RBAT-1 UPS Battery Exact OEM replacement guaranteed to fit easily and precise...

    View full details
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79
  • OPTI-UPS CS385B 6V 5Ah UPS Replacement Battery
    $9.59 - $9.59
    $9.59
    $9.59 - $9.59
    $9.59

    OPTI-UPS CS385B 6V 5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS CS385B UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $9.59 - $9.59
    $9.59
    $9.59 - $9.59
    $9.59
  • OPTI-UPS VS650C 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    OPTI-UPS VS650C 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS VS650C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • OPTI-UPS VS650B 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    OPTI-UPS VS650B 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS VS650B UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • OPTI-UPS VS650 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    OPTI-UPS VS650 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS VS650 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM ...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • OPTI-UPS TS650W 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    OPTI-UPS TS650W 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with OPTI-UPS TS650W UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29