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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 PS1440 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    Opti PS1440 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti PS1440 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM tec...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • Opti Enhanced ES1000C ES1000C-RM 12V 8Ah UPS Replacement Battery
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79

    Opti Enhanced ES1000C ES1000C-RM 12V 8Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti Enhanced ES1000C ES1000C-RM UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Mai...

    View full details
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79
  • Opti GNL1025P 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    Opti GNL1025P 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti GNL1025P UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM t...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • Opti Thunder Shield TS1250W 12V 8Ah UPS Replacement Battery
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79

    Opti Thunder Shield TS1250W 12V 8Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti Thunder Shield TS1250W UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintena...

    View full details
    $21.79 - $21.79
    $21.79
    $21.79 - $21.79
    $21.79
  • Opti ES550C 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    Opti ES550C 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti ES550C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM tec...

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

    Opti ES1000C 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti ES1000C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • Opti DS3000B-RM 12V 7Ah UPS Replacement Battery
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59

    Opti DS3000B-RM 12V 7Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti DS3000B-RM UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM...

    View full details
    $18.59 - $18.59
    $18.59
    $18.59 - $18.59
    $18.59
  • Opti 500PS 12V 5Ah UPS Replacement Battery
    $16.99 - $16.99
    $16.99
    $16.99 - $16.99
    $16.99

    Opti 500PS 12V 5Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti 500PS UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM tech...

    View full details
    $16.99 - $16.99
    $16.99
    $16.99 - $16.99
    $16.99
  • Opti PS3000C 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti PS3000C 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti PS3000C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Opti PS2000D-RT 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti PS2000D-RT 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti PS2000D-RT 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 PS2000D 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti PS2000D 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti PS2000D UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Opti PS1500D-RT 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti PS1500D-RT 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti PS1500D-RT 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 PS1500D-RM 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti PS1500D-RM 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti PS1500D-RM 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 PS1500D 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti PS1500D 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti PS1500D UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Opti PS1500B-RM 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti PS1500B-RM 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti PS1500B-RM 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 IS2000B 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti IS2000B 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti IS2000B UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Opti IS1500B 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti IS1500B 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti IS1500B UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Opti DS10KB31 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti DS10KB31 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti DS10KB31 UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM t...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Opti DS10KB31T 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti DS10KB31T 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti DS10KB31T 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 DS1000E-RM E - C 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti DS1000E-RM E - C 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti DS1000E-RM E - C UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance f...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Opti DS1000E 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti DS1000E 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti DS1000E UPS Battery Exact OEM replacement guaranteed to fit easily and precisely Maintenance free AGM te...

    View full details
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29
  • Opti AS2000C-S 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti AS2000C-S 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti AS2000C-S 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 AS2000B-S 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti AS2000B-S 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti AS2000B-S 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 AS1500C-S 12V 9Ah UPS Replacement Battery
    $26.29 - $26.29
    $26.29
    $26.29 - $26.29
    $26.29

    Opti AS1500C-S 12V 9Ah UPS Replacement Battery

    In stock

    Info AJC® replacement compatible with Opti AS1500C-S 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