Brought my 722d out for the first time in a couple of months. It was running perfectly the last time I used it. It started fine but when I looked at the voltage meter it showed about 4 volts and did not appear to be charging. Turned the PTO on and it dropped down to about 2 volts. The battery was new last spring. Checked connections then took battery out and charged it. Put it back in and turned the ignition to the "ON" position. The meter showed about 4 volts immediately. Thought maybe it was a bad battery. Took it to the parts store and they tested the battery and gave me a new one no questions asked. Came home, installed it and as soon as I turned the ignition switch on (before starting) it immediately registered 4 volts. Started it up and the same thing as before. Not charging at all. I have checked to make sure the positive cable is not rubbing on the frame. It would seem if the alternator was bad the new battery wouldn't show low voltage before even starting the engine. I am a poor mechanic. Any ideas or suggestions? Sorry to be so long-winded.