well if you want to see a real battery comparison go here
http://ffw.pgup.dk/anmeldelser/Gunzo...ne-batteri.htm
it is one of my team mates that made it
there is a line up of 4 different 9,6 batteris, the ROF is measured with audacity which is the real way of doint things.
the small GP 1100 celle is not much worse than a large 9,6 3000 battery.
a stock gun can run no problem on a 8,4 4300 mah battery, at least in denmark they can. guns other than marui use a 9,6 4300 battery no problem from stock.
some even use 12 v 4200 mah batteries in M100 tuned AEG's 330 fps. which run from 28-32 RPS and they still dont have severe breakdowns.
a normalt gun in denmark can run on 10,8 with a M120 spring and still be very reliable, we need to change pistons (marui piston) evert 70000 shot or so.
Best regards
Lars Ringsted