12V 12Ah Pride Mobility SC44X Go-Go Ultra X 4 Wheel Replacement Battery - 2 Pack UPG # D5744 UB12120 12V 12Ah. Pack of 2 Dimensions: 5.94 inches x 3.88 inches x 4.06 inches. Weight: 8.16 Lbs SLA/AGM maintenance free, spill proof battery Rechargeable battery that can be mounted in any position, resists shocks and vibration 1 Year Warranty