Fortress 1700 dt (4 wheel) u1 agm mobility scooter batteryThe Fortress 1700 DT (4 Wheel) Mobility Scooter battery has two pieces of Model U1 Size Deep Cycle, 12V 33 Amp Hour, 12V 35 Amp Hour, 12V 36Amp Hour, AGM U1, Our batteries are designed to replace the original battery and any manufacturers that are currently installed. Chemistry Sealed Lead AGM Deep Cycle Brand Enersys (Usually, may ship alternative) Quantity of Batteries TWO BATTERIES (For 24V Sytem) Voltage 12V x 2 (24V) Color Black Grey Capacity 33