10 Mar Change Your Clocks, Change Your Batteries
MACOMB, IL — Daylight Saving Time starts at 2:00am on Sunday, March 11, 2018. Be sure to change the batteries in your smoke and carbon monoxide detectors when you change you clocks. Also, check the batteries in your weather radio.
30 seconds and 9 volts could save your life
http://www.nfpa.org/public-education/by-topic/smoke-alarms/installing-and-maintaining-smoke-alarms