Replacing smoke alarm batteries can be a hassle. It always seems that just as soon as you've installed fresh ones, the low-battery warning is beeping at you again. Many homeowners wonder why their ...

We’ve all been there. It’s 2 a.m. and you hear an eardrum-piercing beep. Your first reaction is to cover your head with a pillow and pretend it never happened. Eventually the slow chirping takes ...