Universal Power Group RAZOR DIRT BIKE MX500 Replacement Battery UB12120 12V 12AH 12VOLT SLA BATTERY UPG # D5775 UB12120 12V 12Ah 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