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You can get your firmware versions by on that second image (‘Device’) click on the serial number underneath the picture of the inverter and towards the bottom will be the firmware master, slave & ARM versions.

I’m wondering if the problem is that you are spanning midnight, the scheduler cannot go ...

Just to double check that you are using ‘scheduler’ and not the charge periods.

Often it’s simple things like an overlap with another scheduled item i.e. if a previous schedule finishes at 00:30 and the next starts at 00:30 the first schedule will actually finish at 00:30:59 which can overwrite the ...

Hi,

I have a KH7 installed with a WiFi dongle to access the Fox Cloud. I'm also a seasoned HA user.

I want to add a Modbus adapter but cannot find any info on the hardware needed and how to physically conect it to the KH7.

Can you advise? (BTW I'm totally ok with the HA side).

Cheers ...

Hallo,

ich habe einen FOX PRO 15 und auch einen Elfin EW11

hab, glaube ich, alles so konfiguriert wie in der FOX GitHub Anleitung beschrieben

klappt leider nicht

habe auch einen USR-W610 - damit funktioniert die Kommunikation zum FOX PRO 15

könntest du mir deine Elfin Konfiguration zukommen ...

On the EDDI there isn’t an easy fix as it will see the export and turn on, you can disable it during the Flux period or it’s also possible to set a higher ‘export margin’ in the EDDI/Zappi settings so that it doesn’t switch on until it exceeds this value.

I also have an EDDI and use home assistant ...

Hi,

I have just had an install and noticed that my firmware is the 1.05 version for my EP11

I have seen that there is no release notes (I checked the spreadsheet and a few posts and could not find anything?!) but does anyone know what the difference between 1.05 and the latest 1.07 is?

Thanks ...

Your daily self discharge rate will change dramatically as the winter draws in which makes it a slightly more complex answer.

In general the batteries will last longer if not being regularly cycled hard but then they will also lose some capacity through ageing, so it's best to use them as ...

Is your FDPwr really set to 500W or is that a typo ?

The FDPwr setting is the max power the inverter will discharge at but this takes into account house load so for example if your house load was 500W or greater it wouldn’t force discharge at all - you should really set that to your inverters max ...

Ok just looking back through open issues and there is a fix for the H3 Smart that is not yet merged into the main file - take a look at this post which discusses the problem https://github.com/nathanmarlor/foxess_modbus/pull/847, if you can manually change the files as mentioned here in this PR and ...

It shouldn’t be trying to read those registers if it has correctly detected it as an H3 Smart, but it only does that when it starts up for the first time - if you updated to the latest beta after the first time it started it is probably running on the initial config which will be wrong - try ...

Make sure you have installed the v1.13.5b7 beta version as you will need that to support the H3 Smart correctly, in HACS select ‘redownload’, ‘need a different version’ and select the v1.13.5b7 version - restart your HA.

It will yes, if you have set your minsoc to 100% the inverter (BMS) will want to charge at a 5A maintenance setting but if you set the charge limit to 0 it will be limited to zero - so it will neither charge nor discharge (obviously you don't have to use 0 you could set a low value such as 2A which ...

You can change the charge current limit, there is an entity called number.max_charge_current

this in A(mps) and to calculate the charge power you will need to know your battery volts, multiple them together and that will give you the maximum charge power.

If you reduce it to 0 the battery will not ...

If the inverter is disconnected from the cloud it cannot send the 5 minute date samples, it can remember a few days of statistics but if you were disconnected for 2 weeks unfortunately the data for that period will be lost.

Yes all of that is possible using the scheduler

1) - set a Force charge between 00:00-06:59
2) - during the day leave your inverter in Feedin workmode, your batteries won’t be used (nor charged) and all excess solar over your house load will get exported - the batteries will be used normally once ...

There are many ways to calculate this, and the EP11’s represent the most efficient and cheapest LFP batteries to date from Fox - as you say you have not taken losses in to account, nor the 10% of the batteries you cannot use (but have paid for) perhaps more importantly is at what point would you ...

Hi Dave,

Thanks yes I have the Ohme integration on HA installed - so now I know what to look for.

Where do I need to set the 100% soc - is that in the foxess app or on HA?


You need to set in in HA, there is an entity called number.min_soc_on_grid which can be set in an automation using an ...

Hi All.
Just to let you know my system is up and running fine now. It took a lot of time and effort to finally get it sorted.
My installers have been brilliant, they never once said that's how it should work.
They Re-configured the whole system and its doing the job now.
Thanks for all your input ...

Hello Dave,

Sorry to bother you again ...... I have successfully added the modbus connection thanks to your guidance :D
Now I wonder if you are able to help with adding an automation on the modbus to stop my Ohme EV charger draining all the battery power and pull from the grid instead?


Thanks ...

If you already have a solar array fitted that will continue to work as it did before generating power which will firstly cover your house load and then export any unused power.
The AC1 is a battery storage inverter that will make use of that export to charge it’s batteries and the stored energy ...

Musoke wrote: ↑Tue Jun 24, 2025 1:42 pm Hi there,
does any one know anything about the compatibility of EEL batteries?
Thank you in advance!
Musoke

I don’t believe these batteries offer any compatibility as they are 48V low voltage, whereas the Fox inverters are high voltage LifePO4 battery packs

Hi,
Just to add I’m having the same issue on a new install.
Load, Grid and Solar all display fine on the Day graph, but only Solar data appears on the Month or Year graph, despite the key for the graph including all three items.
Hoping someone has some clues of how to fix this🙂


I’m guessing ...

I’m not agile mode expert but i’m pretty sure that you cannot use agile and independent schedules at the same time as they both use the schedule slots to manage the inverter and so one will over-write the other.

Do you have an EV by chance, as it’s much easier to fix your battery charging to the EV ...

L19YDC wrote: ↑Sun Jun 22, 2025 4:00 pm Ok Thanks ..... hopefully I can understand how to wire in the 2 wires to the RS485 connection on inverter.
Appreciate the links ........ now got to understand it all

No problem, if you need any help just shout.

That’s Fantastic thanks Dave,

So I just need to cut into the two wires that the fitter has done for the CT and take my feed into the usb adapter?
Then I can plug the usb adapter into the machine running home assistant ?

Just struggling to see how the machine running home assistant will recognise ...