macwheel e-bike battery pack 36v 48v 10.4ah 14ah 17.5ah gen3 the flex stride hybrid 250w 500w 750w wallke x3 pro step-thru 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 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 b attery 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..syi