So ADV2 was showing roughly 75% charge and took it out for the first ride of spring. managed to do a nice ride of about 12 miles. Only for it to completely power off and nose dive on me at 15 MPH. No warning just a complete cut out and crash. Not a nice experience, luckily I was wearing protection but ripped my gloves to shreds and smashed my phone up. Happened another 2 times going slowly. No reason just sudden cut out and nose dive.
Looking at vesc tool from Floaty I notice cell 17 was completely dead. Now I've only done about 55 miles on the board and it's been stored in doors but I had always had issues with cell 17 and 1 out of the box. It was one of the originals that came with the faulty BMS and was flat on arrival. I had contacted Tony but he had just said keep it on charge over 24h to top up the cells that weren't fully charging.
This worked but I would have to do this each time I charged with the balancing.
Do just a waring to you guys check the vesc tool app with your board and be wary of any cells that are abnormal. It could cause you to nose dive. Even though the board can show an overall charge of 50% in the screen shots above.