[ecsinc]

k, so 9.6v 3300mAh should be good?

I get a good motor speed for like the first 2 shots then after that the motor slows down and levels off at the same rpm which u can hear... It's probably the motor that also needs replacing.
I've got a M733 so the batteries fit in the foregrip, I'll have to change it to the back with a mag pouch with higher cap batteries since they'll be large size.