Originally Posted By: Russ
A GPS is a great tool for staying found...

If you leave a GPS on continuously, you do run the risk of running down the batteries which is why:
1) You don't leave it running continuously, you turn it on, determine the course to your destination and then turn it off. Use a mag compass to follow that course; and,
2) Carry spare batteries, just in case.


Exact-a-mundo. Turn on the GPS, take a fix, turn it off. In this mode lithium batts last for weeks and weeks of use.