I have worked for more than 40 years in the maintenance field. I have served many apartments and condominium properties that housed singles, families, seniors, and disabled people, all of which had smoke alarms/co detectors on the ceilings, some mounted 8’ or higher.
Twice a year my staff and I would have to stop all activities and repairs to replace smoke alarm/co detector batteries in every unit at every property. Every member of my team had to carry 2 large pouches for old and new batteries and a ladder to reach the alarm. We then had to go door to door, wait for the resident to answer then proceed with the task at hand while trying not to rush and end up injured by falling/slipping off the ladder. This job is as important as it is tedious and time-consuming. Time is money and time spent doing this mundane task is time that other important tasks are not getting done. I don’t even want to mention all the middle-of-the-night service calls for a chirping alarm.