Interesting Details About Our Products On Energy Laptop Power Bank/Inverter System Features: 220v 50hz ac output 150w. Dual usb ports 5v 2a. Battery percentage display. Powered by 150wh lithium battery. Advantage over other power banks: The A.C outlet lets you make use of the original chargers for your laptops, phones and other devices as the manufacturer intended. There by protecting your expensive devices from…