Amazon offers Beatit BT-D11 800A Peak 18000mAh 12V Portable Car Jump Starter $55.91 with free shipping. It expires at 2 hours.
It features 18000mAh, dual USB ports, full recharges in just 5.5 hours. It also has over current, short circuit, overload, over-voltage, over-charge protection. This jump starter can starts your vehicle up to 7.0L gas or 5.5L diesel engine.