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.
Sounds like the cable between the negative post and the shunt is faulty. They can get corrosion between the wire strands and the cable lug resulting in your situation.