When your on the road you need backup power
You have a presentation due but you find yourself in the middle of the desert. You can plug your laptop into a power inverter but what happens if your car battery goes dead while your out? The solution to this is to install a backup power unit as well as a power inverter. This way no matter what you can get your laptop powered and finish the presentation. You can also plug in your cell phone so you can get help out for the dead battery. Nothing sucks more than being stranded with a dead cell phone right? Always be prepared!