Smoke detectors must have a nonremovable battery that can last 10 years.I have not seen a 9v battery that has an expiration date as far as 2023.This also requires that the 9v battery be soldered in.

Things I have come across that can lead to saving money, time, and headaches:-Smoke detectors with long-lasting battery-Low-pile and stain resistant carpet-Heavy-duty tile w/ lifetime guarantee -Long-lasting light fixtures and bulbs-High-gloss paint (easier to remove stains)I am curious to hear others weigh in on these practices and provide others.

There are extra battery backup packs and use motion sensors so they don't run 24/7, the power will last for more than a year.

We had our house burn  down   a total loss  due to a remote control  traxxas  battery charger within 30 minutes whole  house suffered  smoke and water damage happened  about  a year and a half  ago thank God no one was home and it happened in the day time.  

Simple question, who is responsible for the upkeep of the batteries of smoke alarms?

All ceilings, walls, and floors must be strong, sturdy, and in their permanent positions.A working smoke detector with a live battery must be installed on every level of the unit, including in the basement and outside of sleeping rooms.

Not afraid of confrontation really as I bought one of those barking things that's supposed to stop it but dog just barks at it till it runs battery down...lol...i told neighbor I was doing it. 

They run off batteries that last about 6 months. 

Now I try to establish a relationship with the neighbors if I can, and I install dummy cameras up high, they are battery operated with red light as if they are on.

I want to install a durable electronic lock that can handle the environment and doesn't have battery issues.