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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

  • Alpha Technologies 5000E SP96-030-22 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 5000E SP96-030-22 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 5000 017-079-XX 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 5000 017-079-XX 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 5000E 017-080-XX 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 5000E 017-080-XX 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 48I-A RM 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 48I-A RM 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 48A 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 48A 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 48AC 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 48AC 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 4000 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 4000 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 3000 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 3000 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 3000E 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 3000E 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 24C 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 24C 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 24CC 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 24CC 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 1500RM 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 1500RM 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 017-111-XX 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 017-111-XX 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 017-099-XX 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 017-099-XX 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Alpha Technologies 017-098-XX 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Alpha Technologies 017-098-XX 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies UT5K 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies UT5K 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies UT4K 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies UT4K 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies UT3K 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies UT3K 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies 4.3KVA 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies 4.3KVA 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies 3.1KVA 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies 3.1KVA 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies 2KVA 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies 2KVA 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies 2.1KVA 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies 2.1KVA 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies 1KVA 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies 1KVA 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59
  • Best Technologies 1.5KVA 12V 35Ah UPS Replacement Battery
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

    AJC Battery Compatible with Best Technologies 1.5KVA 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
    $101.59 - $101.59
    $101.59
    $101.59 - $101.59
    $101.59

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.