The APC Smart-UPS 8000 (SURT8000RMXLT) unit requires the RBC44 replacement battery. The APC SURT8000RMXLT battery kit consists of sixteen (16) 12v 5ah sealed lead acid batteries which match the OEM SURT8000RMXLT battery specifications.

 

Per Battery Specifications:

Our APC SURT8000RMXLT Battery is comprised of sixteen (16) high-rate discharge batteries specifically designed for use in UPS back-up systems. This is not a general purpose 12V 5AH battery sold by most battery retailers, this APC replacement kit is comprised of 12V 5AH AGM HR series SLAs that are tested using Midtronics equipment in order to guarantee that OEM specifications are met and surpassed. The APC SURT8000RMXLT battery replacement kit is fully charged and tested prior to shipment to ensure you the highest quality possible, and comes standard with High-Tech Battery Solution's unbeatable two year no-hassle warranty. All HR sealed lead acid batteries purchased from High-Tech Battery Solutions are designed specifically for the deep-cycle stand by use associated with all APC battery backup systems.