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Dual Hybrid Inverter Setup with Single Battery

Posted: Fri Jul 11, 2025 12:18 am
by flip1900
Hello,
I would like to know if it is possible to use the following setup:

2x Foxess KH10 Single Phae Hybrid Inverter
1x HV Battery connected to both inverters

Basically i only have single phase available and with home demands increasing, heat pump, ev chargers, etc.
The 10kw available from 1 inverter will be rather limitative in a short time, so i was looking to place two inverters in order to scale the output capabilities to a maximum of 20kw.
The thing is for now i would like to use just one battery, will i be able to connect it to both inverters while they are in parallel, master slave configuration and be able to get output of the battery at 20kw max, balanced load between both inverters?
Or is this balance only possible with one battery for each inverter?

Re: Dual Hybrid Inverter Setup with Single Battery

Posted: Fri Jul 11, 2025 9:01 am
by Dave Foster
No you would need to have a battery stack of (approximately) the same size on both if you are running in parallel.
The system when running in parallel treats the batteries as a single stack and tries to maintain the SoC’s, charge and discharge rates to harmonise their use.