I recently bought an a&k m249 saw. The man I bought it from sent me 3 turnigy 11.1v LiPos. The rate of discharge on 2 of them is 30-40c and the other one is 25-50c. Now the gearbox has had a hunterseeker mystical MOSFET installed. My question is; are those LiPos safe for me to use on the gun or should I get a new battery?