I use a DC/ AC inverter in My Truck to power up my computer, fax and wireless internet. ( I work in remote area's) The only problem I had was the supplied 12 V cord is a little small. I installed a solenoid and ran heavy gauge wiring from the battery in the truck to the solenoid, and installed a 2 pole switch for turning the solenoid on/off. Seems to hold more consistant voltage, less line loss.