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chris-maria avatar image
chris-maria asked

False cell imbalance alarm with Cylaid battery Pack 10kW, after Venus OS upgrade to 3.3

Hi, i upgraded my Venus OS (Raspi 2) via swu file to 3.3 last week. SInce then I receive regularely a false cell imbalance error from the cylaid battery pack (48V, LiPoFe4, 10kw - there is a similar JBD pack in parallel without any error, despite the cell voltage imbalance is higher)
screenshot-2024-07-15-131915.png

When I check the cell voltages it normally looks like:
cell-voltages.png

So, false alarm. But the alarm keeps comming and can only be reseted manually. thats really anoying.
the Cylaid battery pack is connected via the RS485 interface and worked properly upfront to the firmware upgrade...
Any ideas?

battery
screenshot-2024-07-15-131915.png (4.4 KiB)
cell-voltages.png (68.7 KiB)
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Alexandra avatar image Alexandra ♦ commented ·

Reverse the FW update. The OS only reports what it is told to. So a signal is being sent.

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nickdb avatar image nickdb ♦♦ commented ·

To add, that is a completely unsupported configuration, so issues with updates come with the territory.

You sure you didn't load a beta?

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1 Answer
chris-maria avatar image
chris-maria answered ·

Hi the .swu file states:
venus-version = "20240611052142 v3.33" version = "0.1.0"
And yes, i am aware that this is uncharted territory,
i didn't expect it to work out of the box, but it did until recently

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