APC Replacement Battery Cartridge #2 J - UPS battery - 1 x lead acid - Japan - for Back-UPS 350; Back-UPS CS 350, 500; Back-UPS ES 500; Back-UPS LS 500; Back-UPS Pro (RBC2J) at TigerDirect.com
APC BK350 Back-UPS CS 350 UPS - WITH USED BATTERY R11> 731304016298 | eBay