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Slacker1
5 pts.
 Battery power source
Alert, Batteries, Beeper, Led, Power sources, Receivers
what is the smallest battery source that i can use to support a device much like an old beeper and a green LED. The beeper only works once or twice per year 4 times at the most, the green LED will be used fulltime. The battery source can not be rechargeable, and cheaper is better

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ASKED: January 3, 2009  5:36 AM
UPDATED: January 5, 2009  4:31 PM
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You might want to look at the one like this <a href="http://www.amazon.com/Ultra-Battery-UPVL-X-Smoke-Detector/dp/B00004W3ZE">battery</a> it is designed to last 10years in a smoke alarm. The always-on aspect of an LED, even if it is drawing minimal power (around 5 mA) will still place a drain on the battery. If your circuit will allow, try setting up a flasher, that will illuminate the LED on briefly at long intervals, similar to <a href="http://www.reprise.com/host/circuits/flasher.asp"> this one </a> Good Luck! -Flame
Last Wiki Answer Submitted:  January 5, 2009  4:31 pm  by  Flame   14,895 pts.
All Answer Wiki Contributors:  Flame   14,895 pts.
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