I bought these for my mini E revo and found that they fit perfectly (as advertised) I have another battery for that car that is rated at 2000MAH and 25C that seems to discharge at a higher rate than these. I don't know whether these Gforce batteries are over rated or whether my other pack is under rated but the difference is negligible. Run time is excellent and thus far they stay well balanced. You can't beat the price and the quality. Cheap and fast shipping what else could you want?