Maybe we should ask in the battery section of the electric forum. I too would like to know the answer to this question. I would hate to turn my 260 into a dirt rockit!

The Flightpower Evo25 V-Power 2170 mAh 3S 11.1v werks awesome in mine. 25C cont., 35C climbouts, 50C max burst. With my solder job and EC3 connector, pack comes in at 174g. I've also got an Absolute Power Xtreme Lite 2500mAh at 18C and 45C burst, not exactly the same but it hasn't skipped a beat either. Its 176g.

Has anyone tried the new thunder power 45C batteries?? these batteries rock! They have a 6C charge rating and dont get nearly as hot, in-flight, as normal lipos. I charge my 2250mah packs at 13 amps. Forget the old days of one-hour charge times. I use them both in my addiction and 260. By the way, u have to love these planes. Pa kicks butt in there plane design. I use light-ply and ca instead of fiberglass on my engine boxes. Never had a failure and lighter than the cloth and resin.