Walmart has the Stanley FatMax 700 Peak Amp Jump Starter with Compressor model no. J7CSR for $39.97 (79.99 – 40.02 instant savings) with Free Shipping for a limited time. Amazon and Jet.com also have it for the same price for a limited time.

The Stanley FatMax 700 Peak Amp Jump Starter is designed to offer maximum performance and jumpstarting the vehicle in a quicker way. Featuring visual and audible reverse polarity alarms to warn against improper connections to battery terminals. It has a built-in AC charger that recharges the unit with most standard household extension cords and a keyless on/off safety switch for greater user protection. This starter consists of a pivoting ultra-bright LED area light for increased visibility in dark areas, 120 psi compressor, heavy duty cables as well as clamps that stores easily in the unit.