FoxESS Community - Owners & Installers Forum

viperose wrote: ↑Fri Dec 19, 2025 12:32 am I was on firmware version 1.30 (I can see that you are on 1.28), so it's definitely worth getting the firmware upgraded asap. Hopefully it fixes your issue like it did mine.

markuspa14 wrote: ↑Wed Dec 10, 2025 4:42 pm Now i found it.

The Import Power Limit set to 10kW

Code: Select all

values:
  "46501": 0
  "46502": 10000

and the "Grid Point Power Limit" is set to 12kW

Code: Select all

values:
  "49136": 0
  "49137": 12000

I'll set it correctly via HA dev tools.

Thank you very much! Great community here. Found a fix for my issue. Vendor and Installer failed to do so.

brunofabre wrote: ↑Tue Dec 23, 2025 10:28 pm
Can you provide some more information on HA dev tools. I have a related problem trying to charge my battery at the maximun power. I have a KH10 inverter and EQ4800-L9 battery (42kWh). According to the KH10 specs the max AC input for Australia is 14.5kW but it is only using 10kW. Also the battery recommended max charge current is 30A operating at a nominal voltage of 403V, so should be able to charge at 12kW. The maximum charge current is 50A which is 20kW, not sure if this is just for protection from short burst or can be used for longer periods. When I have 4kW of solar I should be able to charge my battery at 18.5kW (14.5kW from grid and 4kW for solar) however it will only ever charge at 11kW (10kW from grid and 1kW from solar). I think there is a setting in the inverter limiting the AC input to 10kW and the total charge power to the battery of 11kW. These need to be changed to 14.5kW for max AC input and 20kW for the max charge power (or 50A). Depending on the recommended vs max charge current, the max charge power may need to be 12kW.
Support in Australia is non-existent. I have raised 5 support tickets and never had a response. The support number never answers. The installers updated the firmware after I hassled them enough.

Dave Foster wrote: ↑Wed Dec 24, 2025 12:31 pm

brunofabre wrote: ↑Tue Dec 23, 2025 10:28 pm
Can you provide some more information on HA dev tools. I have a related problem trying to charge my battery at the maximun power. I have a KH10 inverter and EQ4800-L9 battery (42kWh). According to the KH10 specs the max AC input for Australia is 14.5kW but it is only using 10kW. Also the battery recommended max charge current is 30A operating at a nominal voltage of 403V, so should be able to charge at 12kW. The maximum charge current is 50A which is 20kW, not sure if this is just for protection from short burst or can be used for longer periods. When I have 4kW of solar I should be able to charge my battery at 18.5kW (14.5kW from grid and 4kW for solar) however it will only ever charge at 11kW (10kW from grid and 1kW from solar). I think there is a setting in the inverter limiting the AC input to 10kW and the total charge power to the battery of 11kW. These need to be changed to 14.5kW for max AC input and 20kW for the max charge power (or 50A). Depending on the recommended vs max charge current, the max charge power may need to be 12kW.
Support in Australia is non-existent. I have raised 5 support tickets and never had a response. The support number never answers. The installers updated the firmware after I hassled them enough.

The maximum AC power a KH10 can charge your batteries at is 10kWh, the maximum AC input specification is where you have battery charging and EPS operational at the same time.

Dave Foster wrote: ↑Thu Dec 25, 2025 8:43 am If you have the EPS wired and the inverter is running in bypass (UPS) the grid is tied straight through to the EPS socket and the inverter will still take power from the grid to charge batteries. The inverter itself on it’s AC port cannot generate more (or charge the battery) at more than it’s maximum rating.