Before purchasing, please carefully read the product parameters to check if it matches your device!!! Our batteries are suitable for most electric bicycles. For example: Bafang, Voilamart, Tongsheng. Bosch, SHIMANO, Yamaha and Panasonic. 52V 20Ah Electric bike Li-ion Lithium battery suitable for 48V/52V 250w 750w 1000w 1500w E-bike motor W/ Charger (UK warehouse). BMS Protection Board? High quality imported electric cell and equipped with 40A BMS protective plate, prevent over charge, over discharge, over current and short circuit and ensure the long life expectancy. 52V 20AH ebike Lithium battery, A grade 5000mah battery cells, suitable for 1500w 1000w 750w 500w 250w 200w, 150w, 100w, 50w electric bike motors, 58.8V 3A charger. Max constant discharge current is 40A , discharge connector: XT60 Connector. Technology Skill? Comes with a 3A charger, when charging, please open the switch and charge for at least 7 hours, when the red light of charger turns green, it means fully charged. Nominal Voltage (V) : 52v. Nominal Capacity (AH) :20Ah. Built in battery cells. Cell Combination :14s4p (56pcs). Fit for Motor Power :48V/52V 50W-1500W. Battery Weight(kg) : 5.12KG. Continuous Discharge Current (A) :40A. Instantaneous Maximum Discharge Current (A) :120A. Discharge Cutoff Voltage (V) :39.2V. Charge Cutoff Voltage (V) :58.8V. Charger : 58.8V 3A. Charge Time under Standard Charge Current :7h. 1Bottom Base (with XT60 discharge port). 1AC Cable and 1Charger. We will do our best to solve the problem for you.