Studies proven that a V-6 automobile engine uses approximately 0.5 gallons of gas for every 90 minutes it runs. What this translates out to is in case you were to run a 750 watt inverter, you would need to recharge a 120amp battery every 2 hours by idling the car for half an hour. This means that you have access to 36 hours of use from a 750 watt inverter in...
