Are any brands particularly good/reliable? Also how high could I overvolt a 12V motor before it is likely to cause damage? And finally I get that 3S or 4S is number of cells but what does the mAh mean in terms of performance?
At this point I'm leaning towards 3S as it will be lighter/smaller giving me room/weight for another battery for the weapon. What do people think about going down this route?