APC BP1000 UPS Replacement Batteries - Set of 2 Replacement Battery for LW-6FM12S, LHR12-12, HR1251W, GPS12-12F2 and BP12-12. Mfr Part Number: SP12-12HR (12 Volt 12 AmpH) Sealed Lead Acid Battery Item Package Quantity: 2 Guaranteed compatibility with OEM battery