12V 9Ah BATTERY REPL. FOR APC BACK-UPS XS1000,RBC32,33 - 2 Pack Original Power Sonic PS-1290 12V 9AH SLA Battery. Pack of 2 Dimensions: (L) 5.95 x (W) 2.56 x (H) 3.86. Weight: 6.00 lbs. SLA/AGM maintenance free, spill proof battery Rechargeable battery that can be mounted in any position, resists shocks and vibration 1 Year Warranty