Did you every received an update from Marstek for these issues?
Are you able to share that app ?
I can only find the apps with direct api.
I will try, thanks.
I do prefer just a simple app instead of this “it takes over your system integration” approach.
If the API is stable with the CT003, that will be the best option!
I also got randomly it disables local api and switches to manual mode instead self consumption
V147
Hi @Elmar , thank you for confirming this.
I played around with the poll frequency for some time now.
It looks like it appens less often, the higher your set the value.
Now I’m testing at 120 seconds and stable for a few days.
But I also tested with 90 seconds, but after a period of approximately 4 to 5 days, It suddenly happened again (and I’m 100% sure I didn’t open the Marstek app 
). Battery set to “Manual” and “API” unchecked.
@eniewold , It would be great if we could have this examined. Let us/me know if there is anything we can do to assist you in testing!
Good afternoon.
I can’t add your app to Homey. I get this notification:
Marstek Battery Connector is not compatible with the selected Homey.
Are you trying to add it to a Homey Cloud instance? The app is only available for Homey Pro/SHS/Mini.
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Personally I use 5 minute interval, for me that was not very disruptive of the API. But after a few days (or weeks) I needed to restart the battery again. Overall, the API is not stable, but the less you use it, the longer it remains operational.
@eniewold and @Elmar , there is something I noticed whenever it happened that the battery suddenly switched to “manual” and the API was unchecked in the settings.
I looked to the value “Data Age” within my Homey Pro.
That value gave me a clue about the timing when the battery reverted to manual-mode. It looks like at the exact same time the WiFi historical signal in the Marstek app shows a gap of 20 minutes (see screenhot attached).
If I look into my UniFi WiFi Controller, the battery disconnects from the WiFi for a few seconds before it reconnects.
I strongly believe this is not “by chance”, but is somehow related to the API calls? It’s definitely not happening when I use the cloud connector.
Is anyone able to confirm noticing this issue?
Hello all,
I have a Venus-D Firmware v147 here, and mine also shows 10x the capacity it actually holds. I see in this thread that some people have solved this, but I can’t really figure out how.
Can anyone give me a nudge in the right direction?
Try the TEST version of the app, link can be found in the README in top of this forum topic. This newer version allows you to configure the multipliers in the settings.
Thanks for the reply, I will try it.
edit: found it, thanks a lot!
Hi there, I want to use the “Power by the Hour” app to ensure I can charge and discharge the Marstek at the right times. The passive discharge mode works perfectly, including the number of seconds I can specify. Is it true that this option isn’t available for charging the battery?
What’s the passive mode?
My battery is connected to lan, i confirm the api does reset when disconnecting the lan cable. I do hope this will be resolved in (near) future updates by marstek.
Hi everyone,
I am currently experiencing an issue with the API cloud connection for the Marstek Venus. It seems to have stopped updating automatically.
I only receive new data values immediately after restarting the app. After that initial pull, the connection drops or freezes, and the data no longer updates. I have already tried completely reinstalling the app, but it results in the exact same behavior. A few questions for the community and the developer:
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Is anyone else experiencing this identical problem right now?
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Do we know if there were any recent changes or restrictions made to the API interface on Marstek’s end?
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Are there any known workarounds or steps I can take to resolve this?
Thanks in advance for any insights!
Same problem here. Even restarting the App only helps occasionally. Couldn’t find a workaround so far and looking for help. Thanks!
Following was happening today.
The marstek showed old values in homey. I gestartet the App. Again only old values.
Then I opened up the original marstek App. I got the current values in the marstek App.
And suddenly the values in the homey App got updated as well.
Just once. Anyway there is still no regular polling in Homey.
What I figured is that a pull refresh in the official Marstek app seems to be triggering the cloud refresh which than syncs with the Homey app. However, this is super impractical.
