Review on High-Performance 300W Power Inverter 12v to 110v with 2 USB Ports and 2 AC Sockets - Car Outlet Adapter and Laptop Car Charger with Cigarette Lighter by Austin Hearshman

Don't expect it to accept a 175w laptop charger. not enough stock. I think a 300 inverter is enough for a 175w charger, but that's not the case. Bought a 400w Duracell inverter for $50 on sale, works like a charm on my Legion 7 Slim and packed a 175w charger that maxes Duracell from DC input. Don't see all the extra safety features that the 400-watt model doesn't have.