Walmart offers the Energizer 12-volt 500-watt Power Inverter
, model no. EN500, for
. Choose in-store pickup
to avoid the $4.97 shipping fee. (Home Depot
has it for the same with in-store pickup, and Amazon
charges the same with free shipping for Prime members.) That's tied with our mention from two weeks ago and the lowest price we've seen. (It's the best deal now by $3.) It features 1,000-watt peak power, two AC outlets, two USB charging ports, cigarette lighter adapter, and battery-clip cables.
Update: The price has dropped to $30.56