«
»

Smoke Alarm Battery Life

For instance, a carbon zinc battery in a BRk 9120B will last up to one year. It all depends on how fresh it was before it was installed and when the unit itself was activated. UL 217 mandates that any installed battery in a backup mode only alarm needs to last at least for 24 hours in standby condition and thereafter be able to be in alarm for at least 4 minutes. As a rule of thumb in a smoke alarm, alkaline batteries will last for about 1-2 years and Lithium batteries for 6 years plus

As a rule of thumb in a smoke alarm, alkaline batteries will last for about 1-2 years and Lithium batteries for 6 years plus

For instance, a carbon zinc battery in a BRk 9120B will last up to one year. It all depends on how fresh it was before it was installed and when the unit itself was activated. UL 217 mandates that any installed battery in a backup mode only alarm needs to last at least for 24 hours in standby condition and thereafter be able to be in alarm for at least 4 minutes. As a rule of thumb in a smoke alarm, alkaline batteries will last for about 1-2 years and Lithium batteries for 6 years plus.

Share and Enjoy:
  • Print
  • Digg
  • Sphinn
  • del.icio.us
  • Facebook
  • Mixx
  • Google Bookmarks

This entry was posted on Thursday, December 10th, 2009 at 9:49 am and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “Smoke Alarm Battery Life”

  1. Ilias says:
    December 12, 2009 at 12:28 pm

    Hi, Thanks for article. Everytime like to read you.
    Ilias

Leave a Reply