Universal Power Group 12V 32Ah U1 Wheelchair Scooter Gel Battery UPG # D5870 U1 GEL 12V 32Ah Dimensions: 7.71 inches x 5.20 inches x 7.15 inches. Weight: 20.90 Lbs SLA/AGM maintenance free, spill proof battery Rechargeable battery that can be mounted in any position, resists shocks and vibration 1 Year Warranty