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We are your supplier for backup replacement uninterruptable power system batteries (UPS batteries) for APC, Advance Power Systems, Belkin, Tripplite, Cyber Power and other brands.

To find the replacement for your UPS model, click on the manufacturer. Be sure to verify whether your UPS requires more than one battery. Some UPS models may require more than one battery and the wiring harness may need to be transferred. 

APC (American Power Conversion) RBC21 (Battery) UPS Battery Replacement

Manufacturer: APC (American Power Conversion)change

Model: RBC21 (Battery)change

  • WKA12-5.1A 12V 5.1Ah Werker Battery with Polarized Terminals
  • Werker batteries for high rate discharge in UPS applications. Quality tested... Read more >        
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