Ok, so we all know that you couldn't possibly be using all that power that your 5.4L Truck, or your 5.9L Van is making, but then where is it going? And how can we reclaim some of it? In this Instructable I will show you how to save electricity, and also be ready in case of an emergency.
Step 1: Supplies
Ok now we will need supplies
-Truck, car, van, riding lawnmower (no, I'm not kidding, some of them actually have 12v sockets!), etc.
-Battery jump starter/ battery booster pack/ rechargeable 12v battery thing (with cable to charge in car)
-12vdc to 120vac power inverter (mine is only 200watts)
-Lights, chargers, other things that use power (must total less that inverter's output, watts=volts x amps)
Total cost should be about $25,000, or only about $15-40 for inverter and jump starter.