comments:
I use these batteries and charger and they're good. I use the balance charger that came with them since it frees up a port on my real charger, but I always put them in storage mode when done driving with my real charger. I honestly never pay attention to most of the numbers other than the capacity to know my charge rate and general run-time. The ones I linked are a bit bigger than the stock battery size so that's a plus. Generally if they're the right cell count and made by a reputable brand, they do just fine. The stock traxxas battery for my TRX4m started puffing in the first month, but I blame that mostly on not being able to put it in storage voltage. I use a Furitek micro komodo esc and micro python motor. Crawler gears in my transmission and I have plenty of power.