Recovery Starts for Lost Cave Diver

[@jkowall]

Echoing the other comment. When Garmin transmitter connects you can see battery status. It will give you a warning and you have a few dives left. Sherwater transmitters will also give a warning on a dive and you have a few dives left once you clear it. I use both regularly.

[@dcbloomer]

I think the garmin transmitters tell you when the battery is low