Upkeep
The Batteries Have an Owner List: Name Who Changes Each One After Discharge
Walk the house once, write down every battery-run item, and put one named person beside each.
After a discharge the house fills with small powered things. Most of them run on batteries that nobody has written down. The fix is a short list with an owner beside every item, so the first dead battery does not become a search.
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List every battery-run item
Walk the house once with a pad. Include the items people forget: the pendant or call button, the path lights, the bedside lamp remote, the door chime, the flashlight in the kitchen drawer, the digital scale, the thermometer, and the TV remote. Open each battery compartment or check the manual, and write the battery type next to the item.
Name one owner for each item
"The family" is not an owner. Put one name beside each item. That might be you, a sibling, the parent if they are able, or a hired non-medical helper if the family has asked for that errand in writing. A helper can check and replace batteries on the list as a household task. Medicine stays with the family, the doctor, and the pharmacist, and that line does not move.
Treat the pendant as its own line. Some units run on a battery and some charge. Write down which kind yours is, and whose job the charge check is.
Set the check by the device
Some batteries last months and some last weeks. Start with a check every month for the items that run every day, such as the path lights and the pendant. Mark the next check on the list before you leave. Replace a battery at the first sign of a dim light, a weak signal, or a chime that goes quiet, rather than waiting for the item to stop.
Keep one set of spares in one labeled place. Write the device name on each spare packet so the right battery goes into the right item the first time.
Keep the list where the next person looks
Tape the list inside the cabinet door where the spares live, or keep a copy in the folder with the equipment papers. Update it after each change, including a new owner. The next person to open that drawer should know what goes where without asking you.
Keep the list short enough to read at a glance. Twelve items with owners is a working list. Thirty items nobody reads is a pile. If the list keeps growing, the Start Here reading order points to the next piece in this set.