Review on 750 Watt Power Inverter with LCD Screen by Battery Tender: Vehicle Power Adapter with 115V AC and 5V USB Output by Sam Thorpe

The upside is that it has a nice status window on the LCD and displays the correct AC voltage for non-sensitive AC powered devices. The bad thing is that I checked the output power with a 3-pin tester and the lights on the tester are blinking. This device states in the manual that it does not produce a true sine wave, so the power supply may cause your devices to become unstable. I would not recommend using it on laptops and TVs even if they work with this inverter. I recommend an inverter that produces a true sine wave for these types of devices.