A Little Battery Comparison (There is really no comparison)!

[lincpimp]

Given your poly rc batter temps, your system is not drawing very close to the 90amps that they are rated for. I have the same 3200 30c cells in 5s config from flightpower and they do get get up to 115 or so when asked to deliver close to the rated output.

So that just indicates that you are pulling less than 90amps, but I am sure it is more than 45, which is about all the 3000 maxamps are good for. The 4000 cells should do 60-65amps, so 75-80amps sounds about right with your temps are runtime experience. The maxamps cells are certainly not the best available, and are way too pricey for what you get.

Well the Polyrc does see temp spikes of around 120 or so but cools back down, this is usually when the fan on the mmm comes on temporly or on a long track.