This battery pack with intelligent BMS,using a precise battery structure and high quality power lithium cells,is a long life,low risk,safe electric bike battery. Specification Name: E-bike battery pack Voltage: 48V Capacity: 24000mAh Operating temperature: -20~60 Feature 1,Long cycle life: The battery capacity is not less than 85% of the rated capacity even after 2000 times' continuous chargement and dischargement. 2,No memory effect: LiFePO4 battery can be charged and discharged at any time. 3,Safe: With overcharge and overdischarge protection,PTC resistance protection and explosion protection. 4,Environment friendly: can pass MSDS,CE,CCC,UL...certification. 5,Service: supply OEM customization service,short delivery time. 6,Applications: Electric bicycle,two-wheel/three-wheel electric car,low-speed car.