I have a G-booster 130( =160) and flies in Norway down to -15 degreeds C. 4 cell A123 is my favourite choice and have never had bproblems. Althoug the last 2 years I have used 3-cell Lipo, 2650 Mah and they seldom let me down unless its wery cold. I think both should work fine under normal conditions. I think Evo and G-booster is the same, correct me if I am wrong.