UPG # D5743 UB1280 12V 8Ah. Pack of 2 Dimensions: 5.94 inches x 2.56 inches x 3.94 inches. Weight: 4.96 Lbs SLA/AGM maintenance free, spill proof battery Rechargeable battery that can be mounted in any position, resists shocks and vibration Full One Year Warranty 12V 8Ah Battery for Razor MX350 MX400 Electric Dirt Bike - 2 Pack