Amazon.com: APC Smart UPS 3000VA SUA3000 Compatible Replacement Battery Set by UPSBatteryCenter : Electronics
APC UPS, 3000 VA Smart-UPS Sine Wave, Short Depth UPS Battery Backup with Extended Run Option, Tower/4U Rack Convertible, Line-Interactive, 208V (SMX3000HVT) - Newegg.com
APC APC Smart-UPS Battery Backup with Network Card SMT3000RM2UNC
APC Smart-UPS X 3000VA 2U RT LCD UPS Battery Backup (SMX3000RMLV2U) | Dell USA