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uenpia asked

What is max. cell deviation at SmartLithium before Unbalanced is reported?

What is the maximum allowed deviation between cells for a SmartLithium battery before it reports Unbalanced?

Lithium Battery
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Paul B answered ·

this usually depends on the BMS installed and the setting in the BMS and the difference is usually the what the lowest or highest cell is to the lowest - its not a cut and dried answer as it depends on the battery brand and its specs. usually anything over 0.1 to 0.2 v or more is to much and balancing needs to occur, but this is quite variable on personal preferences as well ON how hard the battery is being pushed.

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uenpia avatar image uenpia commented ·
Thanks Paul. The brand is Victron SmartLithium (4 x 12V 330Ah parallel) so I don't think they have different settings, there must be a specific value, where they (via BT) change their reporting in Victron Connect from Balanced to Unbalanced.
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