Well the packs I have will always be run in pairs. The 2200 are run in parallel in my Rally, and the 5000 in series right now in my Revo, hopefully soon in the MT4-G3 I hope to get. I typically check the voltage on the packs before charging anyways, I will just have to make sure to check them when I charge them together.

I would love to go with one of the paraboards, but have not been able to find any with TRX connecters. I anyone knows of one please let me know. I really don't want to have to use adapters. Otherwise I will probably just stick with the cables.