One of them had a low battery last night around 5pm and told us this at random intervals until we figured out which one and changed the battery. That was our last battery which kind of worried me but what were the odds one would go out within the same day.

Apparently the odds are very good since it happened at 3 this morning. My wonderful husband went to Walmart instead of disconnecting it and getting more sleep and just replaced all the other batteries too.

I like that they're apparently working well but really? 3am?