I'd check what model they are in the app and firmware, e.g. Model Topez
2.9, Topaz 2.7 Topaz 2.33, firmware 3.5rc3After removing all of them,
add the one with the latest model first (Topaz 2.9) , then add the next
Topaz 2.7 model.Apparently, due to s...
Had exact same issue.Removed batteries and they were almost too hot to
touch. Binned them in a plastic bag. They were also lithium
energizer.Replaced with a new set. Agree that is'a fire hazard, but not
Googles fault, but battery went bad somehow...