This Kickstarter project lets you wirelessly charge your Hero3 or Hero4 without removing the housing or using a special battery -- and you won't even need an outlet to do it.

The extension cable is pretty much just that, a cable. Two connectors (one for the grip, one for the gimbal) and a cable between them. For this GoPro wants $100, once it goes on sale this Sunday.

Charging cables are not all created equal, and some charge faster than others. Here's how to spot the ones that give you the most power in the least amount of time.