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Do I need new invertor to cennect battery? G8

Posted: Thu Nov 13, 2025 11:40 am
by Jiri002
Hi there,

I have a 10 kW solar system with the G8 inverter. Manul says it is fully optimised for the battery system (additional system required). I would like to add the battery (2 x FoxESS 10.36kWh HV EP Battery (EP11)) to the system, but I was quoted the for FoxESS 5kW 1Ph Hybrid 2MPPT. Am I charged for something I don't need or will this connect to the original system?

Regards,
JIri

Re: Do I need new invertor to cennect battery? G8

Posted: Thu Nov 13, 2025 12:30 pm
by Will
You'll need to buy an additional inverter and AC couple it. The marketing is a bit wolly as any string inverter can be used with an AC coupled battery system.

Re: Do I need new invertor to cennect battery? G8

Posted: Sat Nov 15, 2025 2:10 pm
by ThomasJames
The 5kW hybrid inverter might be extra if your G8 inverter already supports the system. Best to confirm with the installer.