The J+ Booster 2 is a 40-amp dual voltage portable electric vehicle charger advertised to be about as tough as any charging equipment available today. We got our hands on one and used it for a couple of weeks to offer this comprehensive video review.
Being a dual-voltage charger, it offers the flexibility of charging your EV from either a 120-volt household outlet or a 240-V NEMA 14-50 level 2 outlet. The J+ Booster 2 uses the J1772 connector so it can charge any EV currently sold in North America, even Tesla vehicles using the J1772 to Tesla adapter that comes standard with every Tesla vehicle.