They can’t have more than a 1/4 tank of fuel, and batteries do die. That said, few things can beat a tanker with a gas can and jumper cables! Look out enemies of the US!
Major: Sir, we haven’t got the supplies - it’s just a matter of logistics.
General Colt: Logistics?
Major: Yes, Sir.
General Colt: We got logistics comin’ out of our ears! What we need is fighting spirit. The will to win! Where are those aerial photographs?