Walmart has the Stanley Simple Start Jump Starter/Power Pack, model VIPRB-SS4LS, for $38.57 (regularly $59.99) with Free Shipping for a limited time.

The Stanley Compact Lithium-Ion Jump-Starter features a backlit display, SmartCable connectors and a USB power station that all fits in your glove box. It packs serious power into an ultra-compact package that easily tucks away into a glove compartment, toolbox or seat pocket. Featuring dual high-output USB ports (3.1A total), bright LED worklight and a heads-up LCD screen to display real-time information and battery status, it’s a flexible power bank that holds a charge for up to a year without needing to be plugged in. With enough power to provide up to 20 jump starts or recharge up to 10 electronic devices off a single charge, it’s the perfect power supply for everyday use & unexpected emergencies. The enclosed Smart Start connectors provide reverse polarity protection, ensuring the unit is connected correctly and helping you start most vehicles including V6-powered cars and trucks.