> To conserve battery life and having to carry extra batteries I usually don't leave the tracking feature on, only for sending text messages at specific locations along the trail.
Ah, so you have the latest unit capable of sending text! Please tell us how it works out.
As for battery life, unless you are going out for several weeks straight, I'd reconsider that idea. Also, sending minimum signals can add to the possibility of confusion if you were to need help. There is a story of a woman hiking on the PCT who pressed 911, but her location got mis-communicated, so they were looking IN THE WRONG PLACE (30 miles off!)
And often, sending just one signal is not received, since there isn't always a satellite in view. Last summer, a group of PCT hikers tried that policy, and they got a signal out about once every 5 days.
If you're worried about battery life, just carry a spare set.
