Mustart's 40A portable electric vehicle charger with 25-foot wire and a maximum power output of 9.6 kW. Cars can now be charged 2.5 times faster than from standard 16A stations. The device is compatible with almost all electric cars in the U.S. except Teslas. For them, you will need a special adapter, which is sold separately - you can find it by the article SAE J1772. Otherwise, the device is completely safe - there are all protection systems against voltage fluctuations and overheating. And if anything, the manufacturer gives a 2-year warranty.