# What happens when the battery dies?

**URL:** <https://community.zymbit.com/t/what-happens-when-the-battery-dies/276>\
**Category:** ZYMKEY4\
**Created:** [March 29, 2018, 4:25pm UTC](https://community.zymbit.com/t/what-happens-when-the-battery-dies/276 "2018-03-29T16:25:30Z")\
**Posts on this page:** 2\
**Page:** 2

<div class="post-metadata">

**Author:** ![aaribaud-fgs](https://avatars.discourse-cdn.com/v4/letter/a/85f322/32.png) [@aaribaud-fgs](https://community.zymbit.com/u/aaribaud-fgs)\
**Post date:** [April 28, 2020, 5:53am UTC](https://community.zymbit.com/t/what-happens-when-the-battery-dies/276/22 "2020-04-28T05:53:11Z")

</div>

BTW, does the design allow for the battery to be replaced without turning the system off (assuming said replacement is feasible (i.e. no perimeter protection in place) and done with all due precautions (e.g. no metallic tools and ESD grounding)?

---

<div class="post-metadata">

**Author:** ![Finbarr\_of\_Zymbit](https://avatars.discourse-cdn.com/v4/letter/f/e47c2d/32.png) [@Finbarr\_of\_Zymbit](https://community.zymbit.com/u/Finbarr_of_Zymbit)\
**Post date:** [April 28, 2020, 9:49pm UTC](https://community.zymbit.com/t/what-happens-when-the-battery-dies/276/23 "2020-04-28T21:49:05Z")

</div>

Yes, If the host power remains ON, (and your perimeter detect is disabled so you can get access to the battery), then you can replace the battery without loosing RTC or perimeter detect functions.

[Previous page](https://community.zymbit.com/t/what-happens-when-the-battery-dies/276.md?page=1)