APC Replacement Battery Cartridge #18 RBC18 B&H Photo Video
Schneider Electric Smart-UPS C Battery Backup & Surge Protector with SmartConnect - AC 120 V, 600 Watt, 1000 VA, USB, serial, 6x Output conn., 2U, Rackmountable, Black - SMC1000-2UC at TigerDirect.com