It’s widely known that a smoke detector is a good ionizing radiation source, as they contain a small amount of americium-241, a side product of nuclear reactors. But what about other sources?

Lithium-ion batteries are lightweight and display ... Generally, the best 9v battery for a smoke detector may last anywhere from 6 months to 2 years. Meanwhile, 9V lithium batteries typically ...

TYLER, Texas (KLTV) - A Smith County official is advising residents to change their smoke detector batteries as daylight saving time is set to begin on Sunday. “When you change your clocks, go ahead ...