60,000 mAh Lithium Polymer Universal Power Supply integrates an AC Outlet, USB charging ports and DC outlet to give you all the power you need for any device wherever and whenever you need it most. This powerful device provides long lasting portable power instantly without the noise of a generator and is safe for the indoors, RV or boat without the harmful fumes ordinary generators emit. The Universal Power Supply features a power voltage button and LCD digital display so you can control the amount of voltage needed and see how much power is remaining on the battery charger to charge your devices. Also includes an on / off switch so you can conserve power when not in use. APUPS01F is a great solution for first responders and military where instant electrical power is essential.