10.8 volt battery wont damage your gun, i run a 12 volt batterry in my classic army i have shot over 130k bb and it never broke. All whats gonna happen is there will be big increse of your rof. shooting more faster = wear faster since you shoot more bb but its not thats bad like most people that havent tryed it and talk shit about it.
Note: i have a systema magnum motor in my gun and a systema m120 spring witch shoot 398-400 fps stable.
Age verifier for Beauce region
NIKON USER BEWARE ;P