Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
I would start by checking to make sure all 4 batteries are good. Load test them if at least 12.4ish. Charge if not and check specific gravity if wet cell battery.
Sounds like your voltage regulator on the alt went south.
Alt can fry trying to charge a dead system. Ask me how I know :-(....