grahampeterm

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 supplied rear carrier. The controller, an ally box was then bolted to the underside of the carrier. The whole kit has been very good up until recently! Credit to Heinzmann, just battery technology has moved on! The Silver battery block is a real heavy lump! Graham

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 connected - time to change? If I remember correctly its a nickel hydride (silver battery pack with 5 led indicator). I use the bike for local transport and rely on the twist throttle - medical condition prevents me from pedal sensors. The question now is what should I buy to get the bike back into tiptop condition? The latest batteries appear to be lithium? Will I need a new controller as well as battery and charger? The front wheel motor drive is all working fine so just should be retained? There seems so many options I'm confused and unsure what to do! Hence HELP :-) Thanks in anticipation Graham