On March 10, 2019, remember when you change your clock, to also change the batteries in your smoke alarms, unless they have a 10-year lithium battery.
It’s also a good time to check your carbon monoxide alarms and replace them if they have reached the end of their lives.
For more information, checkout the mass.gov link here: https://www.mass.gov/service-details/smoke-and-carbon-monoxide-alarms