On Sat, 24 Sep 2011 15:24:32 -0700, Oren wrote:

On Sat, 24 Sep 2011 14:19:13 -0400, "Robert Green"
wrote:

And. Why do they only go off at 3 AM.....

That's when it's coldest part of the day and dying alkaline batteries are
susceptible to the cold.

It don't get very cool here, inside.

Well, that's because batteries degrade faster when it's hot.

There HAS to be another reason the thing alarms at 3 AM.

It's always something. Think of it as Global Current Change.

I have not found the answer.

Now you have.