where do I configure BMS battery Ah? VenusOS or BMSOS?

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vassilis-bourdakis asked Jan 31, '22

where do I configure BMS battery Ah? VenusOS or BMSOS?

potentially a silly Q.

I vaguely remember when I started testing the canbus connection between rpi and diyBMS that I somewhere set the Ah of the bank. At the time was a test rig with 8 18650cells in 4S2P so put 8Ah somewhere.

Now that I'm finishing top balancing a LifePO4 8S battery with 304 EVE cells, I'd like to change that 8Ah to 304.

So is that somehow configured on VenusOS or on the BMS? tbh have searched in both cannot find anything, so I'm surely missing something here!

cheers

V.

BMS

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1643654857679.png (28.8 KiB)

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Answer 1 · 2022-01-31T20:02:24Z

wkirby answered · Jan 31, 2022 at 08:02 PM

The BMS is transmitting that information, so you'll need to reconfigure your BMS to reflect the new battery capacity.
You can see from your first image where it says 8Ah, this this is a reported field and it is not an editable field either.

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Answer 2 · 2022-01-31T20:31:25Z

vassilis-bourdakis answered · Jan 31, 2022 at 08:31 PM

thanks, will look on the BMS side!

EDIT: yep was hidden in the BMS shunt menu which I had original enabled, set the value and then disabled for the time.

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