I just bought o new battery from aliexpress for my ebike CRZ SRACE(the same like the ncm moscow), 36v 250w,Das-kit L6, X15R motor. In January I created a post about my bike.I've already upgraded the stock freewheel 21 speed, 14-28T to a 11-34T. So the new battery it's a 48v 21ah and i think it...