I was under the impression you could power etrex units from USB. You might need to use a non-data cable and it won't charge batteries in the unit but it will power the unit.
I have special adapters that turn any USB cable into a non-data cable.
Good for devices that you don't want to go into mass-storage mode or if you want to charge something at a charging station and don't want your phone hacked...
I was under the impression you could power etrex units from USB. You might need to use a non-data cable and it won't charge batteries in the unit but it will power the unit.