i did install the additional 10ah today to make the pack the final 20ah. my range still is not very promising. to be realistic it's around 35km of fun. but not much more. that's not bad, but if you imagine an average speed of 25km/h then it's just a bit more than an hour. i was hoping for 2h at least
and the bike is a real eyecatcher. EVERY biker i met wanted to know how fast, how much, how heavy, what distance, blabla ... and i only got very positive comments.
i rode a bit with a non electrified friend today and on our way back is started raining like in the amazonas rainforest. this is the view from top of the hill where the weather was still dry, but you can see a lot of rain in the distance already.
we were soaking wet within seconds. the trails became slipery, and our sight was minimal as the raindrops hit our eyes. and then the misery began: i did NOT make the bike really rainproof, as i wanted to go riding so badly. the first thing i noticed was a throttle signal w/o any throttle from my side. so i turned of the controller as it would have been a 100% crash if the throttle signal would have raised by itself on a slippery downhill trail.
so i had to pedal. pedal this heavy bike with only one virtual 58 teeth front gear (42 teeth with a 16/22 gearing to the rear cassette) is not what you want to do everyday. as is said it was our way back, so most of the road was downhill anyway, but even the shortest uphill parts where not easy to master. there were puddles 20cm (8in) deep and 3m wide, but we had to come home somehow.
as my motor's freewheel doesn't disengage fully it had the CA turn on by the "regen" voltage input of the motor several times. so it was not only the bike i had to move, i was powering the motor as well. yippie!!
when i was back home i realized that the controller was lit again w/o the bike moving. so there must have been a short (or power creeping) inside the controller and the fet-power-switch as well making the bike's controller turn on even with the main switch in the OFF position. luckily the CA still suffers from the "blank-screen-power-on" bug so even as it was powered it didn't book making the bike move.
it was too unsafe to leave the bike in this state, so i opened the battery box (i need a screwdriver to do it) and physically disconnected the bms's power from the battery. so there was no way the bike could start rolling away on it's own
so what would i need to do to make the throttle waterproof? it's one of those "standard chinese" half twist hall type throttles. fill it with di-electric grease? vaseline maybe?
the controller itself needs to be made waterproof and this can be done, so i don't fear the "bike turn on automagic" anymore.