cobra all-terrain fat bike battery pack 52v 48v 20ah himiway zebra electric bike replacement 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 we can customized battery according to your request. please tell us information like, voltage, capacity, size, motor power or more. battery management system is the the circuit board that protect your battery pack and make sure it is safely. avention level ebike replacement battery.syi