Could be a close to dead battery too. Enough power to fire for a while then not enough.
DM14 grey/copper F/S
Etek 3LT grey/black f/s
Valken Proton greyish/black f/s
68 4500 PE stubby, LP output f/s
68 4500 AIR tank(no reg) f/s
Creed Battery, eyes and noid f/s