I'm no battery expert - but I bought a G Force 3 cell lipo at Toledo last spring, and used it to fly my 49 inch FW190 all last summer. it did a great job- puts out 33 amps easily (full throttle for this motor in this plane) and flies the 190 aggressively for 8-10 minutes at 3/4 throttle with some time at full throttle and has plenty to finish the flight. i just ordered two more of their batteries for this year so I will have plenty of batteries to fly the 190.

I liked them because they have the Deans connector and balancing plugs already installed.

I was waiting to see who would pick them up - glad to find a local (US ) distributor.

Ed Mullen