I bought this 400 W power inverter from Buc-ee’s Tested it and try to use it on my Apple MacBook 15 inch. The MacBook only consumes about 90 W of power. But there is supposedly 400 W inverter which claim to be able to handle a power surge of 800 W and 400 W continuous obviously can’t even power and 90 watts of load. Basically a China piece of crap. Buc-ees pls stop selling these crap.