Looking to live off-grid or just lower your electricity bill? Turn a car alternator into alternative energy by building this cheap and easy wind generator for home.

The charger is based of a relatively simple design, employing a 5.2 HP Kubota 4 stroke motor and a 12v car alternator to provide power.

If you're interested in learning how to build your own renewable energy devices, this DIY vertical axis wind turbine is a great place to start.

The alternator is a belt-driven “electricity generator” that charges up the 12-volt battery when the engine is running.