How long will a 9 volt battery last in your devices?
It's one associated with those annoying queries we all ask when the smoke cigarettes detector starts chirping at 3 FEEL: how long will a 9 volt battery last anyway? Honestly, generally there isn't an one "magic" number because it depends completely on what you're plugging it in to. If it's seated in a smoke cigarettes alarm, you may get a 12 months or more from it, but if you're using it to power a high-gain guitar pedal or a motorized toy, a person might be looking at a matter of hours. ...