Description Accessories include: 1. 36 volt 14ah lithium battery with built in 20a bms. Battery parameters: Battery model: 36v 30ah Rated capacity (ah): 30ah Rated voltage (v): 36v Technical Description: 3.7v 18650 battery Unit combination: 3 in parallel and 10 in series Battery size: 38*68*280mm (2 pcs 2mm) Battery quantity (parallel * series): 30 cells. Discharge voltage (v): 30+/-1v Charging voltage (v): 42v Rated discharge current (a): 15a Maximum instantaneous discharge current (a): 30a Maximum continuous discharge current (a): 15a Charging mode: cc /hp Standard charging current (a): 2a Standard charging current Charging time: 4h Maximum DC load (a): 5a Fast current charging time: 2 hours Charging temperature range: 0-45 Discharge temperature range: -20-60 Battery Weight: Approx.: 1070g Life cycle:-Beyond 800 cycles, capacity and performance decrease as the number of cycles increases. Application scope:Electric bicycles, electric scooters, etc. Battery Operation Precautions: 1.1. Do not touch the aluminum foil packaging material with sharp objects, do not bend the top edge seal, do not open or break the folded edge, do not bend the fragile ears, do not drop, impact or bend the battery, do not use the battery if it is short-circuited or malfunctioned at any time. The negative pole is reversed. 2. It is forbidden to charge and discharge: It is forbidden to charge and discharge batteries around flammable and explosive objects (such as sofas, bed sheets, lighters, etc.). 3. Other issues: Avoid short circuiting the battery pack, do not disassemble the battery, do not throw the battery into fire, do not immerse the battery in liquid (such as water, drinks, juice, coffee), do not replace the battery protection plate, Do not use damaged batteries (such as: leakage, puncture, bulge, etc.)The power of all products in our store are real standards. The specific usage time depends on the power consumption of the device.