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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

  • Belkin BU305500-USB 12V 5Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Belkin BU305500-USB 12V 5Ah 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Belkin Residential Gateway Backup BU3DC000-12V 12V 7Ah UPS Replacement Battery
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99

    AJC Battery Compatible with Belkin Residential Gateway Backup BU3DC000-12V 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
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99
  • Belkin With Surge Protection (550VA) F6H550-USB 12V 5Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Belkin With Surge Protection 550VA F6H550-USB 12V 5Ah 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Belkin With Surge Protection (550VA) F6C550-AVR 12V 5Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Belkin With Surge Protection 550VA F6C550-AVR 12V 5Ah 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Belkin F6H550-USB 12V 4.5Ah UPS Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Belkin F6H550-USB 12V 4.5Ah 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Belkin F6C800-UNV 12V 7Ah UPS Replacement Battery
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99

    AJC Battery Compatible with Belkin F6C800-UNV 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
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99
  • Belkin F6C550-AVR 12V 5Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Belkin F6C550-AVR 12V 5Ah 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Belkin F6C625-SER 12V 9Ah UPS Replacement Battery
    $27.19 - $27.19
    $27.19
    $27.19 - $27.19
    $27.19

    AJC Battery Compatible with Belkin F6C625-SER 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
    $27.19 - $27.19
    $27.19
    $27.19 - $27.19
    $27.19
  • Belkin F6C550-AVR (Rev. A) 12V 7Ah UPS Replacement Battery
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99

    AJC Battery Compatible with Belkin F6C550-AVR Rev. A 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
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99
  • Belkin F6C127-BAT-NET F6C129-BAT-NET 12V 7Ah UPS Replacement Battery
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99

    AJC Battery Compatible with Belkin F6C127-BAT-NET F6C129-BAT-NET 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
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99
  • Belkin F6C120-UNV 12V 7Ah UPS Replacement Battery
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99

    AJC Battery Compatible with Belkin F6C120-UNV 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
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99
  • Belkin F6C1000-TW-RK 12V 5Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Belkin F6C1000-TW-RK 12V 5Ah 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Belkin F6C1000-TW-RK 12V 4.5Ah UPS Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Belkin F6C1000-TW-RK 12V 4.5Ah 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Belkin Residential Gateway RG Battery Backup - REV A 12V 8Ah UPS Replacement Battery
    $22.99 - $22.99
    $22.99
    $22.99 - $22.99
    $22.99

    AJC Battery Compatible with Belkin RG Battery Backup - REV A 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
    $22.99 - $22.99
    $22.99
    $22.99 - $22.99
    $22.99
  • Belkin Battery Backup with Surge Protection 750VA F6C750-AVR 12V 7Ah UPS Replacement Battery
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99

    AJC Battery Compatible with Belkin F6C750-AVR 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
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99
  • Belkin F6C1 F6C127-BAT-ATT 12V 7Ah UPS Replacement Battery
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99

    AJC Battery Compatible with Belkin F6C1 F6C127-BAT-ATT 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
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99 - $27.19
    $18.99
  • Belkin Battery Backup with Tower or Horizontal Form Factor 1000VA F6C1000-TW-RK 12V 5Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Belkin F6C1000-TW-RK 12V 5Ah 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Belkin Battery Backup with Tower or Horizontal Form Factor 1250VA F6C1250-TW-RK 12V 5Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Belkin F6C1250-TW-RK 12V 5Ah 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49
  • Belkin F6B F6B750-AVR 12V 18Ah UPS Replacement Battery
    $53.39 - $58.99
    $53.39 - $58.99
    $53.39 - $58.99
    $53.39

    AJC Battery Compatible with Belkin F6B F6B750-AVR 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
    $53.39 - $58.99
    $53.39 - $58.99
    $53.39 - $58.99
    $53.39
  • Belkin With Surge Protection (750VA)F6C750-AVR 12V 8Ah UPS Replacement Battery
    $22.99 - $22.99
    $22.99
    $22.99 - $22.99
    $22.99

    AJC Battery Compatible with Belkin With Surge Protection 750VA F6C750-AVR 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
    $22.99 - $22.99
    $22.99
    $22.99 - $22.99
    $22.99
  • Belkin Residential Gateway (RG) - REV A 12V 8Ah UPS Replacement Battery
    $22.99 - $22.99
    $22.99
    $22.99 - $22.99
    $22.99

    AJC Battery Compatible with Belkin Residential Gateway RG - REV A 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
    $22.99 - $22.99
    $22.99
    $22.99 - $22.99
    $22.99
  • Belkin Residential Gateway - REV A 12V 8Ah UPS Replacement Battery
    $22.99 - $22.99
    $22.99
    $22.99 - $22.99
    $22.99

    AJC Battery Compatible with Belkin Residential Gateway - REV A 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
    $22.99 - $22.99
    $22.99
    $22.99 - $22.99
    $22.99
  • Belkin F6H375spUSB 12V 4.5Ah UPS Replacement Battery
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49

    AJC Battery Compatible with Belkin F6H375spUSB 12V 4.5Ah 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
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49 - $18.49
    $17.49
  • Belkin F6H500 F6H550-USB 12V 5Ah UPS Replacement Battery
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

    AJC Battery Compatible with Belkin F6H500 F6H550-USB 12V 5Ah 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
    $18.49 - $18.49
    $18.49
    $18.49 - $18.49
    $18.49

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.