Thank you! @Markjosephp , I will try using the ultimate lithium
batteries. However, based on my search in Google lot of people having
the same issue even they replaced the lithium batteries as mentioned by
@jimboman . I will update you my experience ...
Thank you! @Markjosephp for getting back to me. Here are the answers to
your questions:- I have a battery powered Nest Protect.- After changing
batteries it last for about a day and start beeping. And it beep short
but loud after about every minute. ...
Again thank you! @MarkThewessen for sharing the steps. I still have the
same issue even after the mentioned procedure, and I repeated it a
couple of times but still no luck.
Thank you @MarkThewessen , I did a rest, but don't know how to hard rest
to factory default. I will search on web, however, if you have this
information handy please share. Again thank you