E825 Quit Running Help Please

I have a GEM e825 I washed it off, ran it for a while, then let it sit for several hours, i then got back on it drove for a while and the low battery buzzer came on batteries were below 10% I was on my way home and just before i got there it stopped running. I put it on charger over night. The next day I got in it, and it would not go in forward or reverse. When I engage my parking brake up or down, I can here the click of the solenoid. Ive also checked the gas pedal to make sure the switch and other electronics in it was working and they were. Not sure what to look for next? Any help or suggestions would be greatly appreciated.

What year?
Any codes?
Did it charge?