Changing the battery in a smoke detector

Objective

A tutorial on smoke detectors, maintenance, and battery changing.

Completion Checklist

1. •Test all detectors in the house.
2. •Practice replacing a battery, so you will know what to do when the time comes.
3. •Make sure you have a spare battery on hand. If it starts bleeping one night because of an old battery, you want one handy so you can get some sleep.