Minimum capacity shorty Lipo?

[kaszal]

What's the minimum capacity shorty Lipo I could get away with for 4wd 1/10 for occasional club use and special events? It's for a vintage Schumacher with brushless 8.5T. I just want to own one battery so it has to charge between heats. Looking at the Orion or Absima range from Inside Line, especially the LCG low profile shorties. Is 3800mah enough? They say the current rating is 100C or over so could I charge these more quickly than 3.8A? Any advice appreciated, thanks.