Enough Battery Power?
 

Will mini (2/3 A) cells, specifically "Intellect 1400 2/3A" in a 9.6v pack be able to power my gun? as im trying to fit them in a tight spot. I also mean power my gun long enough for atleast 1/2 a days worth of gaming. Upgrades are as follows:

Guarder SP100
Systema N-B Cylinder
Systema Poly Carb Piston
Systema Air Seal Nozzle
Systema Silent Head Set
Prometheus Bearing Spring Guide

Also would it payoff to get a set of higher torgue gears to take some of the pressure off the motor/battery, if so which set do u guys recommend for an M4 v2 gearbox.

If that battery is 1400mah, it should be fine. If you worry, get a spare battery.