To my knowledge Lipo packs are not supposed to get real warm when charging them like Nicads or Nimh do. If your Lipo gets warm there is a problem. I never had mine get warm at all on my ICE. I own the same Maxamps pack that you do. As long as you are charging it at the right amps on a Lipo charger or Lipo mode there shouldn't be any problems. I am sure someone with more knowledge on this will chime in.