Changing the batteries in smoke detectors is something often forgotten. And good batteries in a smoke detector are one thing that may be very important. While a smoke detector may very well work quietly for many years without being needed, it is important to make certain it has good batteries. Because, when a smoke detector is needed, it had better be in working order.
That is why the recommendation is to use the occasion of the end of Daylight Saving Time to change the batteries in smoke detectors and carbon monoxide detectors when changing clocks for Daylight Saving Time on Sunday.
California Fire Chief Allen Smith said it is easier to remember to do it all at once, changing batteries in smoke detectors and carbon monoxide detectors at the same time as the clocks are changed. Those who may need assistance to change the batteries can get help from the California Fire Department if necessary, according to Smith.
Even if the smoke detector is hardwired, meaning it is wired into the electric system of the structure, it should be checked. Even the hardwired smoke detectors have a battery backup in case the power goes out. That battery backup needs to be changed.
Most buildings have smoke detectors, but, according to Smith, the detectors are often found with dead batteries or no batteries. One reason might be that, when battery power is low, a smoke detector often makes an ear-piercing shriek. Some people may just remove the battery to stop the noise instead of replacing it. If there is no battery handy at the time and the detector is quiet, it is easy to forget to replace the battery.
Later, if the detector is actually needed, it is no longer functional. By a California City ordinance effective in December of 2000, all residential rental units are required to have smoke detectors provided by the owner. The responsibility of keeping the batteries fresh is up to the resident.
A service offered by the fire department is use of a carbon monoxide monitor if a resident has concerns, suspects the presence of carbon monoxide or is experiencing symptoms of CO poisoning.