Watch: Use a Chainsaw to Charge a Car Battery
Russ Chastain 07.31.17
So, you’re stuck in the boonies and your battery is dead or just too weak to start your truck… but you’ve got a chainsaw in the back. With a little creative thinking, you just might be in luck.
This guy demonstrates how you can use a chainsaw to drive a belt (or a piece of rope, boot laces, or whatever you have) and turn your vehicle’s alternator in order to charge up the battery.
I’m thinking this might take a while, but it sure sounds better than hiking all the way home (or trying this rope-start trick).
Some commenters say you should turn on your vehicle’s ignition for this to work; others disagree. Me, I don’t know.
Check it out: