[BrianG]

Maybe some here who uses that charger and balancer combo can shed some light on how it works and the idiosyncrasies specific to that charger. From the sounds of it, the balancer is working ok, it's just not doing anything since the pack is balanced.

Sorry to hear about the results from your races! I don't think I've ever heard of that many problems with that many trucks from one person! Did you walk under any ladders, break any mirrors, or cross the path of any black cats? ;)

About your runtime, I'd try to change gearing a little to maybe squeeze a bit more runtime. If your top speed is more than you need, maybe you can gear down a tad and take some load off the motor. That will pull less current on acceleration and hopefully make the batteries last longer. You could also try lightening up wherever possible.