geocycle wrote:I’ve not found a gps that has enough battery life that you can just leave on all the time.
Garmin Etrex 20x, or one of the other general outdoor GPSs like a GPSMap 64 or Oregon.
They are AA powered, and last about 16-24 hours on a pair, depending on model and screen backlight setting. I just carry a spare pair of rechargeable AAa, and swap if it goes beep for low battery, but you may care to be more organised than that.
You do have to remember to turn it on/off.