The APC SRT10KRMXLT30 the OR-1250 battery replacement. The APC SRT10KRMXLT30 Replacement Battery Kit consists of thirty two (32) 12v 5ah sealed lead acid battery which matches the SRT10KRMXLT30 OEM battery specifications. These are not general purpose 12V 5AH batteries sold by most battery retailers, this 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.