Tripp-Lite SmartOnline 1000VA SU1000RTXL2U Battery Replacement Kit is comprised of high-rate discharge batteries specifically designed for use in UPS back-up systems. These are not general purpose 12V 5AH batteries sold by most battery retailers, this Tripp-Lite kit is comprised of 12V 7AH AGM HR series SLAs that are tested using Midtronics equipment in order to guarantee that OEM specifications are met and surpassed. The Tripp-Lite 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 Tripp-Lite battery backup systems.