I took advantage of two recent trips to test extending my iPhone 5 battery life to power the GPS function for all-day hikes.

One trip was a remote camping and hiking trip into Southeast Utah.  The other was a more civilized series of hikes in the Canadian Rockies.  Some hikes were longer than the ~3 hours my iPhone battery will last running the Motion X GPS software, even with wireless and data turned off to reduce the power drain of futile signal seeking in the backcountry. Continue reading →