We had to make a trip to MIL's yesterday to replace the battery in her carbon monoxide detector. She called saying it's been beeping for over a week. What should she do.....

It was flashing LB, LB, LB - and right there in the manual - it defined LB as LOW BATTERY!!!!!

We all had a good laugh over it. She has been widowed for over 20 years. I have always admired her for her strength - but things are changing a bit now. I expect this is the tip of the iceberg.