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CyberPower RB1250X4 UPS Replacement Battery Cartridge

CyberPower RB1250X4 UPS Replacement Battery Cartridge
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CyberPower RB1250X4 UPS Replacement Battery Cartridge

The RB1250X4 UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries. The RB1250X4 contains four 12V/5Ah batteries, certified to meet or exceed original manufacturer specifications. This leak-proof, sealed lead-acid battery never requires replacement fluid. The pre-assembled cartridge installs easily into your CyberPower UPS system and is shipped with reusable packaging for delivering expired batteries to a suitable recycling center. The RB1250X4 comes with instructions, recycling information, and an eighteen-month warranty.

UPS Compatibility

  • PR750RT2U
  • PR750RT2UC

Product Features

  • Sealed Lead-Acid Battery
    Supplies high surge currents, provides robust power-to-weight ratios, and is cost-effective.
  • Maintenance-Free Battery Fluid
    Never requires replacement.
  • Leak-Proof Casing
    Protects the sealed lead-acid battery and prolongs battery life.
  • User-Installable Cartridge
    Allows for quick and convenient installation; each cartridge is pre-assembled.
  • Reusable Packaging
    Provides for conveniently delivering expired batteries to a recycling center. After installing the new cartridge, place the old one in the reusable packaging.
  • OEM Certified
    CyberPower batteries meet or exceed original manufacturer specifications.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.


  • UPC: 649532931064 
  • Mfr's Part #: RB1250X4