# I found out that CM5 has their own RTC module... today

**URL:** <https://forum.clockworkpi.com/t/i-found-out-that-cm5-has-their-own-rtc-module-today/22640>\
**Category:** uConsole\
**Tags:** hardware\
**Created:** [June 9, 2026, 1:46am UTC](https://forum.clockworkpi.com/t/i-found-out-that-cm5-has-their-own-rtc-module-today/22640 "2026-06-09T01:46:55Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![bechlee7851](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/bechlee7851/32/16172_2.png) [@bechlee7851](https://forum.clockworkpi.com/u/bechlee7851)\
**Post date:** [June 9, 2026, 1:46am UTC](https://forum.clockworkpi.com/t/i-found-out-that-cm5-has-their-own-rtc-module-today/22640/1 "2026-06-09T01:46:55Z")

</div>

I wanted my uconsole CM5 have RTC, but buying AIO V2 just for using RTC module only wouldn’t be a good usage of resources. So it was hard to choose between normal expansion and AIO V2.

But today, when I read the store page of upgrade kit, I found out that carrier board of upgrade kit has a port for “RTC battery for CM5”. So I googled about it, and CM5 had their own RTC! And I immediately chose the standard one with NVME battery board and purchased the kit.

So, if I’m using CM5, am I good to go with some RTC battery?

---

<div class="post-metadata">

**Author:** ![Rex](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/rex/32/16852_2.png) [@Rex](https://forum.clockworkpi.com/u/Rex)\
**Post date:** [June 9, 2026, 1:52am UTC](https://forum.clockworkpi.com/t/i-found-out-that-cm5-has-their-own-rtc-module-today/22640/2 "2026-06-09T01:52:03Z")

</div>

Yep, you just need to supply battery and the built-in RTC will work.

---

<div class="post-metadata">

**Author:** ![bechlee7851](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/bechlee7851/32/16172_2.png) [@bechlee7851](https://forum.clockworkpi.com/u/bechlee7851)\
**Post date:** [June 9, 2026, 2:13am UTC](https://forum.clockworkpi.com/t/i-found-out-that-cm5-has-their-own-rtc-module-today/22640/3 "2026-06-09T02:13:21Z")

</div>

Thanks! I should see there’s some good battery for it!

---

<div class="post-metadata">

**Author:** ![vileer](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/vileer/32/10337_2.png) [@vileer](https://forum.clockworkpi.com/u/vileer)\
**Post date:** [June 10, 2026, 8:47am UTC](https://forum.clockworkpi.com/t/i-found-out-that-cm5-has-their-own-rtc-module-today/22640/4 "2026-06-10T08:47:53Z")

</div>

You will need to find a battery with the MX1.25 ultra-thin connector. Here are some recommendations from the community. [HackerGadgets' uConsole Upgrade Kit - adding NVME SSD(PCIe), RJ45 Ethernet and USB 3.0 to your Uconsole - #1005 by proteus](https://forum.clockworkpi.com/t/hackergadgets-uconsole-upgrade-kit-adding-nvme-ssd-pcie-rj45-ethernet-and-usb-3-0-to-your-uconsole/20019/1005)