[CDN_Stalker]

Increasing voltage will give you more power as in motor/gear speed. Is where the problem starts with internals. Higher power surge to the motor makes it spin faster, makes the gears turn faster and the tappet beat itself silly, and makes the repetitions increase.

Amperage increase, even with the same voltage motor, will give your motor the current it needs, you'll get a rate of fire increase from the small battery, but you'll get longevity between battery charges, such as if you shoot 1000 rounds per game day, the 1600mAh will last you all day, but the 3600mAh might last you three full game days without charging, and at a higher rate of fire.