I have and use a 400 watt inverter plugged into a power outlet to power my laptop, and anything else that needs a small amount of AC power. For most of these applications, the non-sine power is OK, as it goes into a adapter that converts back to dc anyway. If your inverter has a plug for a power outlet(cigarette lighter). the best choice is to install a GOOD, truck type power outlet wigh plenty of wiring capacity and a fuse. Then just plug in the inverter and do whatever. in addition, you can plug in a USB adapter to power and charge things like phones, tablets, and any USB device. I usually keep my phone and tablets plugged in most of the time.