GP1272 is a general purpose battery with 3-5 years in standby service or more than 260 cycles at 100% discharge in cycle service. As with all CSB batteries, all are rechargeable, highly efficient, leak proof and maintenance free. Replaces batteries for APC models: APC AP280, APC AP330, APC AP330XT, APC AP360, APC AP360SX, APC BACKUPS 250, APC BACKUPS AP250B, APC BACKUPS AP280, APC BACKUPS AP280B, APC BACKUPS AP300, APC BACKUPS AP400, APC BACKUPS AP400B, APC BACKUPS AP500M, APC BACKUPS AP500MC, APC BACKUPS PRO280, APC BACKUPS PRO280BPNP, APC BACKUPS PRO280C, APC BACKUPS PRO280PNP, APC BACKUPS PRO280S, APC BACKUPS PRO350U, APC BACKUPS PRO420, APC BACKUPS PRO420C, APC BACKUPS PRO420PNP, APC BACKUPS PRO420S, APC BACKUPS PRO500CLR, APC BACKUPS PRO500U, APC PERSONAL POWERCELL, APC PRO350USB, APC PROFESSIONAL POWERCELL, APC SMARTUPS 250, APC SMARTUPS 420, APC SMARTUPS 420NET, APC SMARTUPS 450, APC SMARTUPS VS420 12 Volt 7.2 A.H. Length: 5.95 Width: 2.56 Height: 3.79 Wt. 5.67 lbs. Ref: RBC2/RBC5(2)/RBC9(2)/ RBC12(8) Reference: UB1270, PS-1270, GP1272, LC-R127R2P, NP7-12