At First You Might Scratch Your Head And Wonder How.
But what if you could spin the alternator fast enough to charge the battery? That's where the chain saw comes in handy.
You need to take the bare and chain off the saw. then using an old fan belt, piece of rope or boot lace, spin the alternator using your chain saw motor.
It doesn't take long to get enough charge in the battery to start your vehicle.
Watch the video it will show you all the details