HobbyKing B grade 30c 2sx5000 hard pack $15

http://www.hobbyking.com/hobbyking/s...dProduct=15497

First Pic Current 5,10,20,50 Temp delta F 17,28,38,70 or actual temp 77,88,102,127
Second Pic 10,20,50,60 amps.

Cell tabs on this are about 140deg F when doing 50 amps and 200 deg F when doing 60 amps. The soft pack above is a better deal if you can fit it. This must be called a 10C pack.