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Hi all - I have a downhill bike with 36w 350w mid-drive motor. There isn't a lot of space for big batteries with the suspension in the frame. I am wondering what the smallest size of battery you could get to support about 2hrs of riding. Essentially it is used to get you up the hill so you can...

Quick update - tested fuses (fine) - resoldered BMS (shiny silver) - removed charging connector end and just wired charger to the charge cable together (in case there was a connection issue) No change On thing of note is that the charger doesn't heat up at all. Normally it would heat up a bit...

Just to be clear the discharge wire is black?

Tomorrow’s going to be busy :) Thankyou

Yes the white multi charge wire was in place when charging. Should it be?

Thanks everyone Just to confirm - The only soldering I have done is the black / blue and white wires onto the BMS. Everything else is how the battery was originally setup So if those wires are in the right place - and nothing else seems too obviously wrong I will 1. Check fuses 2. Buy a new...

Please forgive my atrocious soldering.. :oops: Image 4 &5 you can see the wiring for C- P- B- Image 3 - closeup of bms Image 2 - the thin metal ripped when taking cover off battery Image 1&6 - going in live end of the battery Happy to take more photos if that helps Thanks for the help

So This may help - but I still don't actually know what the problem is. Measuring each pin on the connector (black on B - red working through the pins) 3.47 6.92 10.42 13.90 17.36 20.82 24.3 27.7 31.2 34.9 Measured the charger also - there was 42v coming from that Measured between black and...

Hi everyone - first time poster - enjoying solving the problems now. Am a bit stuck though TLDR 1. Battery was not powering the motor 2. Installed a new BMS 3. Motor now works but the battery now does not charge BMS https://www.amazon.co.uk/10Series-Prote ... C80&sr=1-3 Battery...