question

esbjorn avatar image
esbjorn asked

BMV-702 SOC/temperture

I have BMV-702 with temperature sensor together with LiFePo4
I usually use SOC between 95% -60%, to open / close relay, which starts charging at 60% and closes at 95%
Now I also want to close the charge below 0 degrees and test "High temp relay", but it does not work if I simultaneously use SOC.
Do you have any suggestions that will make both controls of the relay work

temperature compensation
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3 Answers
Paul B avatar image
Paul B answered ·

Try connecting the BMV702 to your phone when its on the internet and upgrade the BMV702 to the latest firmware.

I presume that the temp relay option only appears when there is a temp sensor connected. as I have not seen this option before

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esbjorn avatar image
esbjorn answered ·

Thanks for your comments. Yes, tempsensor connected.
Updated in connection with testing. Version BMV-702: v3.10

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Zac Blodget avatar image
Zac Blodget answered ·

I'm hijacking an old thread here. Can the BMV-702 operate the relay based on SOC AND Battery temperature (assuming I buy and install the separate temp sensor cable) or is it one or the other?

Thanks,

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