Kurtbe

Got it now Rozsda! Thank you for taking the trouble to explain one more time. Greetings, Kurt

Maybe I should write to them: "How much will 1000 units that can read SOC cost, and when can I have them?"

It may boil down to translation, but I understand very little of your feedback... Anybody can shed some more light on this? Greets, Kurt

You are quite right, so far they have given me the silent treatment.

I sent this to Voltronic Power Contact Us: "Hi, I recently installed an Axpert max ii 8kW. I am contemplating installing more units in different locations, but I am missing an important feature wich seems to be working on other Axpert inverters: programming program 12 & 13 by SOC rather than Voltage. The present firmware does not allow this. Is there any chance that this might change anytime soon (like in 3-4 months)? Greetings, Kurt" Wonder whether I will get a reply. I'll keep you posted.

Thanks for the info! At least I now know. Let's hope that Rozsda gets somewhere with his negotiations with the Axpert people... Greetings, Kurt I don't mind putting in my bit of pressure, only who is "them"? If anyone can give me an e-mail address on how to reach Axpert, I'd be happy to oblige.

Thanks for the info... But my knowledge of coding is just about null and void. Nor do I have any experience. The question actually was: what is the difference between the 'Patched' version and the regular one? Do they work differently on a practical level, what is actually patched? (sort of hoping that you might be able to "patch" program 12 & 13 and get the SOC in there...)

Unfortunately, this is NOT the solution... And I guess that running the firmware for the 10kW would also be the wrong choice to make...?

Merry Christmas to all and a happy new year! I am running 81.07 too on the max ii 8kW. I now understand that users of that type are "the odd ones" out, since most others DO have the option to use SOC instead of Voltage. Complaining to the (local) supplier here (Valencia Spain) will have no effect. They could not care less. For now, I have left Spain for an indefinite period and the Axpert is on its own. Disconnected from the gid by a relay. I have no monitoring capacity now because the Network is also down... I cross my fingers that it may remain properly working till I return. May I be so curious Coulomb as to ask what it is that you "patch" in the software? Greets to all. Kurt

Hi Coulomb, I have been roaming the net for days to find a solution. Unfortunately I got nowhere. Somebody has an EG4-6500EX, which seems to be an Axpert Max/ He has this option in his firmware. If I had that option it would solve all problems... Do you think there is any chance of acquiring this for my Axpert max ii? So far I have solved the problem by adding a timer to the relay, which only allows the red to connect between midnight and 08 in the morning. On top of that, setiing program 05 to USE (user-defined) allows for program 13 to be set lower than 51V (apparently that was dictated by Pylontech). So I have now put 49V as the return to battery point. This might sort of work, but of course it is still not comparable to SOC% setting. So if somebody knows about some firmware that would allow it... please let me know. Greetings, Kurt

Could you give some more more detail and information, please? Tnx, Kurt

Hi Rozsda, SBU: Utility only starts working when battery and solar are 'out'. It will then charge the batteries at the speed set in program program 11. It will also provide power to the house. When solar power is generated, this power will be sent to whatever demands power: this can be the batteries or the house. Only when batteries have sufficiënt power, you will return to battery mode. Two remarks however: EVEN in battery mode The Axpert will continuously take 70W from the grid. That is why I (and you) use the dry contact and a relay to avoid that. But then (in SBU mode) it is ONLY the settings from program 12 and 13 that make the Axpert switch to and from the grid. (Unless you cut off manually)

Hi Rozsda, Thank you for your reply (you were the one who inspired me to use the net as a generator!). But as said, I am not an expert. So you lost me at ESP32. To design boards, soldering microchips and programming them in whatever protocol, I would have to start from scratch (apart from the soldering). In order to be able to set this up, I would need a lot of detailed information. (Dummy like type). I hope you, or somebody else can get me going in the right direction. Kind regards, Kurt

Sorry for being so sloppy!!! You are quite correct!

OMG... I have a lot to learn yet. Thanks again!!! Kurt