These Ego batteries are awesome! Perfect upgrade for my bbshd from Luna Cycles! A lot of people have used the cheap charger that comes with the blower, trimmer, etcetera, to make a base for mounting these batteries to their ebikes. One problem is that the connection is very short and most any bump would break connection. Strapping helps, lots of things help! Lol! One full proof fix I found that works best and is actually the easiest. Is bending spring steel in this manner. It works perfect! This is actually great to if you just want to lock the battery to the charger for packing to another site! Keeps them together and protected. Or if you have these charges and batteries in a moving charge station. In the end mounting this setup in reverse of the way I did in this video is a much better mounting solution. That way the seat locks the battery in and when going up hill you will never have a disconnect!