Sears offers the DieHard 750-Watt Mobile Power Inverter with Digital Display, model no. 71495, for $40.47. That's $15 under our November mention and the lowest total price we could find by $10. Choose in-store pickup to dodge the $6.99 shipping charge. This device converts 12-volt DC power to 110-volt AC power. It features a USB port and two 110-volt AC household outlets.

Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts. Plus, Shop Your Way Max members are eligible for free shipping.