# Alpha ESS Smile G3 T10 INV Battery SOC in homey

**URL:** https://community.homey.app/t/alpha-ess-smile-g3-t10-inv-battery-soc-in-homey/155939
**Category:** Questions & Help
**Tags:** app, flow, homey-pro
**Created:** [June 8, 2026, 8:20pm UTC](https://community.homey.app/t/alpha-ess-smile-g3-t10-inv-battery-soc-in-homey/155939 "2026-06-08T20:20:36Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Giuseppe\_DiGiulio](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/giuseppe_digiulio/32/121124_2.png) [@Giuseppe\_DiGiulio](https://community.homey.app/u/Giuseppe_DiGiulio)
#### Post date: [June 8, 2026, 8:20pm UTC](https://community.homey.app/t/alpha-ess-smile-g3-t10-inv-battery-soc-in-homey/155939/1 "2026-06-08T20:20:36Z")

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Hi everyone,  
I have an Alpha ESS SMILE-G3-T10-INV and I’m using the Alpha ESS app in Homey.  
The battery SOC shown in Homey is 90%, but the Alpha ESS app shows the correct value of 28%. So Homey is reading the wrong value.  
My settings:  
• IP address: 192.168.18.31  
• Port: 502  
• Interval: 10 seconds  
Smart charging for my home battery is not working because of this incorrect SOC reading.  
Has anyone solved this issue with the SMILE-G3 model? Are there specific Modbus registers I need to configure?  
Thanks in advance!

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<div class="post-metadata">

### Author: ![maggie\_maggie](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/maggie_maggie/32/121016_2.png) [@maggie\_maggie](https://community.homey.app/u/maggie_maggie)
#### Post date: [June 10, 2026, 10:27am UTC](https://community.homey.app/t/alpha-ess-smile-g3-t10-inv-battery-soc-in-homey/155939/2 "2026-06-10T10:27:00Z")

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Homey reports the battery SOC as 90%, while both the Alpha ESS app and inverter show the correct SOC of 28%. Because Homey is receiving an incorrect SOC value, smart charging and battery automation are not working properly.