First off...I have searched the forum (and applied what I could quickly) and there's lots of good information, but I'm a process guy and I need a clear step by step troubleshooting process to follow.
I've got a 2nd Gen Fatty with original motor (350w), controller (with a U) , battery (36v bottle) and LCD. I've added fenders and the installed the LCD when it was shipped later after the bike arrived).
I pulled the bike out yesterday, charged the battery (properly) and went for a ride for about 10 minutes. Good power, changed through the speeds, ran only throttle and with power assist....basically the normal check out the bike stuff before a longer ride. Came back to the garage to grab my BoomBotix bluetooth speaker (see pic) and left again...within 100 yards I lost power and then all went dark. I've checked all connections, brakes, crankcase magnet, removed the battery (has a charge...see the video link) and reattached everything and all I get when turning it on is a red light (see the video link) that then fades out. I'm looking for advice on the logical steps to trouble shoot this.
I appreciate your help!