250w 500w 750w 1000w fat tire electric bike hailong battery pack 36v 48v 52v 14.4ah 19.2ah 24ah 30ah emtb ebike batteries

most of our battery packs are made up of authentic grade a 18650 battery cells from korea or japan we use samsung, panasonic or lg brand cells and and some use our brand cells. in every product link description, you can check which cells are built in the battery pack you are intereted battery management system is the the circuit board that protect your battery pack and make sure it is safely. we can customized battery according to your request. please tell us information like, voltage, capacity, size, motor power or more. black battery color.syi