Today’s hikers could have five or more electric gadgets with them on a long-distance hike—tools like a global positioning system (GPS) unit, a cellphone, camera, flashlight and a SteriPEN.
Each of which needs batteries or charging.
Goal Zero’s PV module is encased in a nylon canvass with loops that are easily attachable to a backpack, which means on the pack, it could charge spare batteries throughout the day.
When you’re considering such a device, pay attention to the utility it offers. Look for a device that has the capability to charge a common battery and has multiple tips for different devices.