Micro-Start Sport

You park your bike to grab lunch, but when you get back, the darn thing just won’t start. But don’t worry—the Micro-Start Sport jump-starter takes care of the pesky problem.

This extremely compact, 9.75-ounce power supply kit measures only five by three inches. With a 7,500 mAH capacity, it can start gas engines up to a four-liter V6. It also has a LED flashlight and a handy USB slot for charging laptops, smartphones, and other devices. The power pack comes with smart clamps that prevent reverse polarity, overcharge, overdischarge, and short-circuiting. Available for $99.99