The #1 Rated MICRO-START by Antigravity Batteries was the FIRST lithium-ion Mini Jump-Starter on the market, and still leads the way as BEST in the business. The MICRO-START can jump-start vehicles, as well as charge all your Electronics such as Cell Phones, Tablets, Laptops, GoPro Cameras and much more, all in a Pocket-Sized Device! It even has a built-in flashlight! Just charge it and take a Personal Power Supply (PPS) wherever you go. No electric outlet needed.