Gooloo via Amazon offers its Gooloo GP80 12-volt 450-amp Peak Car Jump Starter / 10,000mAh Portable Battery Pack for $49.99. Coupon code "UXGQMZPJ" knocks that to $34.99. With free shipping, that's $5 under our January mention, $15 off list, and the lowest price we could find. Deal ends July 15.

It jumps vehicles with gas engines up to 4.5 liters or diesel engines up to 2.5 liters. Features include two quick-charge USB 3.0 ports, an LED flashlight with SOS and strobe modes, and intelligent jumper cables.