MySpool Power Failure Alert requires batteries only for a few seconds to send an OFF alert. Then it shuts down and does not use batteries again until the next Power OFF event. One set of batteries should be good for about 500 such events - or for as long as their shelf life permits.  We recommend replacing the batteries every few years to ensure no interruptions in the device's life cycle.

Alkaline batteries last 5-10 years but should be tested annually. Unplug your device, wait for the Power OFF alert, then plug it back in and confirm that you also received a Power ON alert.

We will send a courtesy email reminder to replace your batteries after 5 years.