Read Smart Lithium values

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alexw asked Feb 8, '23

Read Smart Lithium values

Hello everybody!

I am using multiple Smart Lithium LiPoFe4 batteries from Victron. They are working properly so far.

In the whole environment I am connecting to MQTT by using a CerboGX.

I get a pretty good overview of my environment, but unfortunately I have no chance to see the values from the battery I can see in the bluetooth menu: Battery temperature, cell voltage, etc.

Is there any chance to read out these values without reverse engineering the bluetooth communication between the app and the batteries?

Thank you very much!

Best regards

Alex

Lithium Battery lynx bms

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Answer 1 · 2023-02-08T07:47:54Z

Stefanie (Victron Energy Staff) answered · Feb 08, 2023 at 07:47 AM

Hi @alexw

Unfortunately not. Bluetooth is the only way to read cell-level values incl. temp.

There are some smart guys from the Signal K group currently working on a Signal K plugin hat reads Victron data over Instant readout Bluetooth Low Energy (BLE) messages from supported devices. Smart lithiums haven't been integrated yet but they are working on it.

Once released, you could use that plugin via Signal K to get the data you want.

Keep watching the following links:

https://www.npmjs.com/package/signalk-victron-ble

https://github.com/stefanor/signalk-victron-ble

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Answer 2 · 2023-02-21T16:34:14Z

keshavdv answered · Feb 21, 2023 at 04:34 PM

@alexw If you'd like to help add support for the Smart Lithium, can you share a few advertisement examples using the instructions from https://github.com/keshavdv/victron-ble#development and sharing it in a Github issue? The protocol has generously been released by Victron, but I'd love some real world data to use for unit tests and I don't have one personally to be confident it works.

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Answer 3 · 2023-04-05T20:17:39Z

okeplay answered · Apr 05, 2023 at 08:17 PM

okeplay

Not quite there yet. I still need to install the long cable and I am also installing a few other cables at the same time so that I hopefully don't have to drill more holes for more cables later.

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