Hi In one topic you wrote that yoy made DUI range extender for your Fathom ebike. I've got Stance E+ 2 2021 and would like to make one for myself. Can you tell me how you did it? Did you just grab any 36v battery with bms, connected red and black cable and it's working? Or you need to do something else? I have some knowledge but I'm worrying about bike giving me errors.