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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

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

  • GS Portolac TEV12210 12V 22Ah UPS Replacement Battery
    $59.49 - $59.49
    $59.49
    $59.49 - $59.49
    $59.49

    AJC Battery Compatible with GS Portolac TEV12210 12V 22Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

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    $59.49 - $59.49
    $59.49
    $59.49 - $59.49
    $59.49
  • Haze HZB12-110, HZB 12-110 12V 110Ah UPS Battery
    $443.29 - $443.29
    $443.29
    $443.29 - $443.29
    $443.29

    UPG Battery Compatible with Haze HZB12-110, HZB 12-110 12V 110Ah UPS Battery

    This is an UPG® Brand replacement compatible with Haze UPS Batteries Terminal: Internal Threaded Post Volts: 12V (12 Volt) Ah: 110Ah (110000mAh)...

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    $443.29 - $443.29
    $443.29
    $443.29 - $443.29
    $443.29
  • GNB Sprinter S12V370 12V 90Ah UPS Battery
    $421.79 - $421.79
    $421.79
    $421.79 - $421.79
    $421.79

    UPG Battery Compatible with GNB Sprinter S12V370 12V 90Ah UPS Battery

    This is an UPG® Brand replacement compatible with GNB UPS Batteries Terminal: Internal Threaded Post Volts: 12V (12 Volt) Ah: 90Ah (90000mAh) 1...

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    $421.79 - $421.79
    $421.79
    $421.79 - $421.79
    $421.79
  • Deka Unigy 27HR3500S 12V 90Ah UPS Battery
    $421.79 - $421.79
    $421.79
    $421.79 - $421.79
    $421.79

    UPG Battery Compatible with Deka Unigy 27HR3500S 12V 90Ah UPS Battery

    This is an UPG® Brand replacement compatible with Deka Unigy UPS Batteries Terminal: Internal Threaded Post Volts: 12V (12 Volt) Ah: 90Ah (90000...

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    $421.79 - $421.79
    $421.79
    $421.79 - $421.79
    $421.79
  • Deka Unigy 31HR4000S 12V 110Ah UPS Battery
    $443.29 - $443.29
    $443.29
    $443.29 - $443.29
    $443.29

    UPG Battery Compatible with Deka Unigy 31HR4000S 12V 110Ah UPS Battery

    This is an UPG® Brand replacement compatible with Deka Unigy UPS Batteries Terminal: Internal Threaded Post Volts: 12V (12 Volt) Ah: 110Ah (1100...

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    $443.29 - $443.29
    $443.29
    $443.29 - $443.29
    $443.29
  • Alpha Technologies 1810017 12V 90Ah UPS Battery
    $421.79 - $421.79
    $421.79
    $421.79 - $421.79
    $421.79

    UPG Battery Compatible with Alpha Technologies 1810017 12V 90Ah UPS Battery

    This is an UPG® Brand replacement compatible with Alpha Technologies UPS Batteries Terminal: Internal Threaded Post Volts: 12V (12 Volt) Ah: 90A...

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    $421.79 - $421.79
    $421.79
    $421.79 - $421.79
    $421.79
  • Yuasa YLM18-12 YLM1812 12V 18Ah UPS Replacement Battery
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29

    AJC Battery Compatible with Yuasa YLM18-12 YLM1812 12V 18Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

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    $53.29 - $59.49
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29
  • Yuasa REC12-12 12V 12Ah UPS Replacement Battery
    $42.29 - $47.39
    $42.29 - $47.39
    $42.29 - $47.39
    $42.29

    AJC Battery Compatible with Yuasa REC12-12 12V 12Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

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    $42.29 - $47.39
    $42.29 - $47.39
    $42.29 - $47.39
    $42.29
  • Yuasa NPX-35-6 6V 7Ah UPS Replacement Battery
    $11.99 - $11.99
    $11.99
    $11.99 - $11.99
    $11.99

    AJC Battery Compatible with Yuasa NPX-35-6 6V 7Ah UPS Battery

    In stock

    Information 6V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed ...

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    $11.99 - $11.99
    $11.99
    $11.99 - $11.99
    $11.99
  • Yuasa NPH16-12 12V 18Ah UPS Replacement Battery
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29

    AJC Battery Compatible with Yuasa NPH16-12 12V 18Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

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    $53.29 - $59.49
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29
  • Yuasa NPH3.2-12 12V 3.2Ah UPS Replacement Battery
    $12.19 - $12.19
    $12.19
    $12.19 - $12.19
    $12.19

    AJC Battery Compatible with Yuasa NPH3.2-12 12V 3.2Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

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    $12.19 - $12.19
    $12.19
    $12.19 - $12.19
    $12.19
  • Yuasa NP6-12 12V 8Ah UPS Replacement Battery
    $23.69 - $23.69
    $23.69
    $23.69 - $23.69
    $23.69

    AJC Battery Compatible with Yuasa NP6-12 12V 8Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $23.69 - $23.69
    $23.69
    $23.69 - $23.69
    $23.69
  • Yuasa NP2.6-12 12V 3.2Ah UPS Replacement Battery
    $12.19 - $12.19
    $12.19
    $12.19 - $12.19
    $12.19

    AJC Battery Compatible with Yuasa NP2.6-12 12V 3.2Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

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    $12.19 - $12.19
    $12.19
    $12.19 - $12.19
    $12.19
  • Yuasa NP2412 12V 26Ah UPS Replacement Battery
    $75.69 - $75.69
    $75.69
    $75.69 - $75.69
    $75.69

    AJC Battery Compatible with Yuasa NP2412 12V 26Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $75.69 - $75.69
    $75.69
    $75.69 - $75.69
    $75.69
  • Yuasa NP18-12B 12V 18Ah UPS Replacement Battery
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29

    AJC Battery Compatible with Yuasa NP18-12B 12V 18Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29
  • Yuasa NP17-12 12V 18Ah UPS Replacement Battery
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29

    AJC Battery Compatible with Yuasa NP17-12 12V 18Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29 - $59.49
    $53.29
  • Yuasa NP12-12 12V 10Ah UPS Replacement Battery
    $36.69 - $47.39
    $36.69 - $47.39
    $36.69 - $47.39
    $36.69

    AJC Battery Compatible with Yuasa NP12-12 12V 10Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $36.69 - $47.39
    $36.69 - $47.39
    $36.69 - $47.39
    $36.69
  • Xtreme Power XVT-800 12V 9Ah UPS Replacement Battery
    $27.49 - $27.49
    $27.49
    $27.49 - $27.49
    $27.49

    AJC Battery Compatible with Xtreme Power XVT-800 12V 9Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $27.49 - $27.49
    $27.49
    $27.49 - $27.49
    $27.49
  • Xtreme Power XPRT-2000 XPRT-3000 12V 8Ah UPS Replacement Battery
    $23.69 - $23.69
    $23.69
    $23.69 - $23.69
    $23.69

    AJC Battery Compatible with Xtreme Power XPRT-2000 XPRT-3000 12V 8Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $23.69 - $23.69
    $23.69
    $23.69 - $23.69
    $23.69
  • Xtreme Power NXRT-2000 NXRT-3000 12V 8Ah UPS Replacement Battery
    $23.69 - $23.69
    $23.69
    $23.69 - $23.69
    $23.69

    AJC Battery Compatible with Xtreme Power NXRT-2000 NXRT-3000 12V 8Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $23.69 - $23.69
    $23.69
    $23.69 - $23.69
    $23.69
  • Xtreme Power NXRT-1500 12V 7Ah UPS Replacement Battery
    $19.39 - $27.49
    $19.39 - $27.49
    $19.39 - $27.49
    $19.39

    AJC Battery Compatible with Xtreme Power NXRT-1500 12V 7Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $19.39 - $27.49
    $19.39 - $27.49
    $19.39 - $27.49
    $19.39
  • Xtreme Power NXRT-1000 12V 9Ah UPS Replacement Battery
    $27.49 - $27.49
    $27.49
    $27.49 - $27.49
    $27.49

    AJC Battery Compatible with Xtreme Power NXRT-1000 12V 9Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $27.49 - $27.49
    $27.49
    $27.49 - $27.49
    $27.49
  • AJC Battery Brand Replacement for a WKHR12-55C 12V 55Ah UPS Replacement Battery
    $149.69 - $149.69
    $149.69
    $149.69 - $149.69
    $149.69

    AJC Battery Brand Replacement for Werker WKHR12-55C 12V 55Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

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    $149.69 - $149.69
    $149.69
    $149.69 - $149.69
    $149.69
  • AJC Battery Brand Replacement for a WKA12-33J 12V 35Ah UPS Replacement Battery
    $101.49 - $101.49
    $101.49
    $101.49 - $101.49
    $101.49

    AJC Battery Brand Replacement for Werker WKA12-33J 12V 35Ah UPS Battery

    In stock

    Information 12V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed...

    View full details
    $101.49 - $101.49
    $101.49
    $101.49 - $101.49
    $101.49

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.