# Pylontech Battery Compatibility - Mixing US3000 and US5000 batteries

**URL:** https://forum.cleanenergyreviews.info/t/pylontech-battery-compatibility-mixing-us3000-and-us5000-batteries/2877
**Category:** Battery Systems
**Tags:** pylontech
**Created:** [December 7, 2023, 10:59am UTC](https://forum.cleanenergyreviews.info/t/pylontech-battery-compatibility-mixing-us3000-and-us5000-batteries/2877 "2023-12-07T10:59:59Z")
**Posts on this page:** 1
**Showing post:** 2

<div class="post-metadata">

### Author: ![Svarky](https://forum.cleanenergyreviews.info/user_avatar/forum.cleanenergyreviews.info/svarky/32/20_2.png) [@Svarky](https://forum.cleanenergyreviews.info/u/Svarky)
#### Post date: [December 14, 2023, 12:33am UTC](https://forum.cleanenergyreviews.info/t/pylontech-battery-compatibility-mixing-us3000-and-us5000-batteries/2877/2 "2023-12-14T00:33:17Z")

</div>

# Mixing Pylontech US3000C and US3000B batteries in the same system

I was able to successfully upgrade an existing system that used 4 older US3000C batteries together with 6 new US3000(B) batteries. (Total of 10 batteries)

The first two batteries, including the master, were US3000C, then the next 6 batteries were US3000(B), and the last 2 batteries were US3000C. 👍

Note it didn’t work when we tested the first 4 US3000C batteries and the last 6 batteries US3000B. The last two batteries (9th & 10th) must be US3000C.

---

_[View the full topic](https://forum.cleanenergyreviews.info/t/pylontech-battery-compatibility-mixing-us3000-and-us5000-batteries/2877)._