It's a good idea to have a quality car battery charger on hand in case of an emergency. However, they all aren't created ...

Also, don't let its size fool you. The iWALK Ultra-Compact Portable Charger with Built-In Lightning Cable is powerful enough to fully charge an iPhone 8 one-and-a-half times on a single battery ...

At 54 x 86 x 6 mm (2.1 x 3.4 x 0.2 in), the charger is the same size as a credit card area-wise, although its about five times thicker. Still, it should be possible to fit it in a larger wallet slot.

Meet the Dart, a 65-watt laptop charger built with MIT technology that is up to four times smaller and six times lighter than current chargers. No one wants to make a bulky laptop charger, of course.

Panasonic’s Eneloop BQ-CC55, our favorite charger for AA and AAA rechargeable batteries, is sleek, compact, easy to use, and plugs directly into a wall outlet.