Get those cell log monitors as soon as possible. Not sure if you'll have the same problem as me but one of my cells didn't charge for some reason with the black and decker. It went from 3.27v to 3.38v . It's charging now but I think B&D stopped charging earlier than usual and so that cell didn't get a full charge or something. Not sure what happened. Maybe it was the 13 AH usage that did it. I think I'm going to get two of those cell log monitors too since it's only about $30 for two of them. I'll just plug them in each time after charging to make sure all of them charged because if you take off on a ride without all the cells charged, you'll end up destroying cells.

The cell is at 3.40v now and it appears to be charging slowly. All my other cells are fine so I don't know if it was just a bad cell or what.