1 X 48V Motor wheel. 1 X 48V controller. 1 X controller bag. 1 X SW900 display. 1 X twist throttle (pair). 1 X brake lever (pair). 1 X PAS sensor. 1 X battery and charger —-this is optional. If you chose “with battery 48V 13Ah”, the battery and charger is included. If you chose “no battery”, then the battery and charger is not included. Below is the battery 48V 13Ah specification information. 48V 13AH Battery Connector for Controller: XT60 Nominal Voltage: 48V Nominal Capacity: 13Ah Composed Type: 13Series 5Paralles 13S5P Ce l ls: Powerful 1 8 6 5 0 3.7V 2600mAh 5C Cells BMS: 30Amp continuous 60±10Amp maximum Fit Motor Power : 48V, 500W, 750W, 1000W Charge Current: 2A Charge Cut-off Voltage: 54.6V Discharge Cut-off Voltage: 39V Discharge Temperature: -20 to 65°C Charge Temperature: 0 to 45°C Dimensions: 7095270mm Battery Weight: 4.4kg Cycle life:? 80% capacity after 800 cycles. Brake lever-Power cut-off Brake lever/sensor. There are 2 options. BZ-4(8)- 8 magnets PAS.