I’ve recently fitted the SpeedBox 1.0 b tuning to my gen 3 Bosch smart system and it was working great. Absolute night and day in terms of enjoying the e-bike. However I’ve recently got a problem in that my bike is failing to charge fully. Basically will charge for a max of 20 mins and then cuts out. I have to unplug and plug back in for it to start charging again. I have reset the battery bms, removed it and charged direct and am at a complete loss. Have removed the SpeedBox in preparation for what feels like an inevitable trip to the trek dealer.