Assertion: alarm's battery | /r/HasProperty | replaced
Facets:
value: as often
type: TEMPORAL
value: least once
type: TEMPORAL
value: in order to avoid the alarm
type: PURPOSE
Source sentences:
text: Many wired smoke alarms will chirp in short bursts periodically and a low battery will trigger regular chirping until the batteries are replaced in order to avoid the alarm not working properly in a situation where the building's electricity is cut off.
text: With wired alarm systems, the backup battery will need to be replaced when it is unable to hold its charge.
text: According to the U.S. Fire Administration (USFA), smoke detectors should be tested at least once a month and batteries should be replaced at least once or twice a year.
text: By the way, three AA's have about three times as much energy as a single 9V, so perhaps part of the idea is that the batteries might not have to be replaced as often.