The battery smoke detector just requires a plate attached to the ceiling and either 2 AA Batteries or a 9 Volt, depending on who manufactured yours. If the light goes out, and your electricity is on, it's time to buy a new smoke detector. The battery smoke detectors will give out a beeping noise when the batteries run low. Smoke detectors are required in most states. Landlords that rent out their homes are also required to install smoke detectors for their tenants safety.
Smoke detectors save lives.
Make sure you install some in your home as soon as possible. Inc. PageWise makes no representations about the content published on this site. PageWise hereby disclaims all warranties and conditions with regard to this information, and user agrees that all such use is at its own risk. If you are under 18, please do NOT opt-in to receive email offers on this page.