I've gotta say, the 4200s that I have are enormously high maintenance, and I can't stand it. I bought 8 very good packs for 2 different oval cars a few months ago, and because I don't race very often, I am CONSTANTLY tending to these things. 300 seconds here, 300 seconds there, discharge, equalize, re-charge, store... blah, blah, blah. It reminds me of the days of those nasty Sanyo SCE 1700s that were super expensive and had a shorter lifespan than a garden moth.
I hate these batteries. I don't care how much voltage they pump out or how good the internal resistance is. The GP3700 is the best sub-C battery that has been out in the last 20 years, and we all tossed them aside for more voltage and runtime like they were yesterday's garbage (speaking of most forms of racing outside of off road).
If it weren't for my BJ4WE needing saddle packs, I'd have all Orion LiPos in all of my cars already.
