PowerJill Multi-Function Portable Jump Starter with Air Compressor (400A Peak Current, 12,000mAh)

Keep a charged-up PowerJill Multi-Function Jump Starter in your car and you'll have all the power you need to jump-start a dead battery, inflate a flat tire, or charge smartphones, notebook computers, and USB devices. This 12,000mAh power pack can be fully charged in 4 hours and packs enough current to jump-start a 12VDC battery 20 times. It will charge a smartphone in one hour and a laptop computer in three hours. It will hold a charge for three to six months, though the manufacturer recommends recharging at least every three months; the lifetime of the product is 1,000 charging cycles. Built-in safeguards include overcharge, over-discharge, reverse polarity, and short-circuit protection. The compressor can deliver a maximum pressure of 85 PSI to inflate vehicle or bike tires, balls, and other inflatable products. The Jump Starter, compressor, alligator clip cables, USB/smartphone cable, laptop power cable, and charging cables come in a 12.75 x 10 x 3.5" hard-sided, foam-lined carry case.