Tripp Lite's BP480V400 External Battery Pack offers extended battery runtime when used in conjunction with compatible Tripp Lite UPS systems. Includes internal disconnect for battery isolation. Compatible UPS Systems:SVX30K to SVX210K, SU40K, SU60K, SU80K, SU20KX, SU40KX, SU60KX, SU80KX, SU60KTV and SU80KTV only.