I see everyone saying they keep up with their dogs.
What if you have two or three dogs going two or three different directions?
What if they go somewhere you can't keep up?
What if an emergency happens and you have to leave and come back the next day... the Garmin will be dead?
Just a few thing to think about, but many won't realize it until it happens to them.
Mike I wish you would stop it!!!! Im gettn all paranoid now!!!

Seriously though that is some dang good points and thing I've been thinking about lately.
I let one of my under the feet, wont get out and hunt cur dogs out a few weeks ago with a partially charged collar one and didn't realise it until he was gone.
I was a little panicked to say the least. Im back to researching radio systems again.