http://www.morpower.com.tw/Hydraulic...re%20Pump.html
9 amps does sound pretty power hungry, but say you have a 5,000 mili-amp battery pack, it would provide roughly 30 mins of continuous operation. That's not horrible, is it? On a model like an excavator, where you are mostly just running the pump, and the spin motor, 30 mins doesn't sound to bad. On a wheel loader, where the pump could be dialed back to an idle between bucket cycles, with some channel mixing, runtime would still be around 15 to 20 mins, I'd guess, since the drivetrain motors would be consuming power as well.
What sort of run time do you guys get with your models right now? Joe, weren't you getting 40-45 mins on your Vario?