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Thanks for the info so far - the battery pack is 36v and the bike motor 200W, not sure of the controller rating; I'll have a good look tomorrow and see if I can post a picky! The kit was a 'standard' Heinzmann package with the silver cased plastic battery pack mounted on lugs which hook onto the...

Hi there - looking for some help regarding my Heinzmann converted bike. I bought a Heinzmann kit about 5 years ago and successfully converted a Specialised hybrid bike. Time's moved on and the battery pack is losing its performance, taking an age to charge and then discharging even when not...