the discharge mode has absolutley nothing to do with your power source. A 30 amp battery tray does not need a power source..SuperNaut said:If going with the Turbo35, I wouldnt buy a power supply with anything less than 35amps. This is of course, if you plan to use this as your primary discharger AND you plan to discharge your packs at 30-35amps.
I personally use a 55amp Rivergate Bulldog which allows me to run my GFX35 at full capacity (if needed) as well as power another charger to charge, motor work, lathe, etc. I think it was only $175 new.