Maybe mine was a lemon compared to the guy running 11.1v lipo on his KWA, but mine wouldnt keep up to a CA36 on a 9.6v. I guess for me the winding motor is way too slow. It takes about 10 seconds to wind up some bb's to shoot them all in a matter of seconds. After repeating this in the field over an 8 hour period it gets pretty boring.
Whats funny is, after being super frustrated with the slow speed, I did some modifications to mine, because thats what I do... anyways one thing lead to another and it ended up with an AEG motor inside of it. Granted, the plastic pieces wont hold up, but with even an 8.4v battery on it, it would wind the magazine instantaneously... EASILY keeping up with ANY AEG. Wish they could make some metal internals and do the same thing. After I get some access to a machine shop I will be taking advantage of the idea myself.
Before the crazy modifications... I actually found that just loading a bunch of mid caps made me more effective for my team. Not only was I quieter moving around, I had mags that would out feed my gun... so I could put bb's where they needed to be: down range, not waiting on a mag to wind itself.
** Please do not try to do this type of modification with your c mag it will break... I just did it because im a mad scientist. I have a 600fps bolt action, modifited co2 powered shotgun, etc... = )
Holds 2500 bb's
taking it apart repeatedly over a long period of time may strip plastic screw holes out