I have a hyster w40z I put a new charger on that I bought off amazon, I got it all hooked up and It is charging, I have it hooked up right but the charger feels hot to the touch and I do not believe that is normal the charger has some kind of a mode selector and comes pre set on mode 2 does anyone know the amperage the charger should be pulling or any knowledge about the mode selection? Thx