Lithinum Ion Battery Parameter: Top A Grade Cell, 20A BMS, 36V 13AH 15AH 16AH 17AH, suitable for controller and 450W-650W motor. Charger: 42V 2A. Size: 34.3*7.4*9.9cm BMS Protection Board: Equipped with 20A BMS protection board, upgraded with imported IC chip to prevent over-charging, over-discharging, over-current and short-circuiting, ensuring long service life Main Features: LED power indicator to show the battery power at any time, and the battery performance is stable. Low water permeability Aluminum alloy material case is corrosion resistance and wear resistance High Discharge Efficiency: The battery can be discharged normally at -20°C, and the discharge efficiency can reach 95%. Make full use of the battery and the driving range will be longer. When the battery is not in use, the self-discharge rate does not exceed 3% Notice: Please measure the size of your original battery, confirm the size is not too large or too small to install,check the motor power, and the discharge port before purchasing Lithium battery features:1. The battery is equipped with a smart BMS, which protects battery from over-charge, over-discharge, over-voltage, over-current, short-circuit and temperature protection to ensure the safety2. The battery is water-resistant to a certain extent, you don't need to worry about it when it rains3. Our battery can work at a temperature of -20℃-55℃, and the discharge efficiency can reach 95%Type: Lithium-ionRated Voltage / capacity: 36V / 13Ah 15Ah 16Ah 17AhWeight: 4-5 kgBMS: 20AFit Motor Power: 450W-650WSize: 343*74*99mmDischarge cycle life:800-1000 timesMax current: 2AMax voltage: 42VCharge Time under Standard Charge Current:4-6 hStorage temperature: -20°C~45°CRange of working temperature:Charging: 0°C~45°CDischarge: -20°C~60°CPackage Included:1*Lithium battery1*Charger1*Battery instructionsWarm tips: After receiving the package, please charge it before use. Please do not disassemble or modify the battery pack privately