Using Airdata to assess battery health

[JoelP]

Hopefully I am posting this in the correct section…..

When I sync to Airdata it assesses the cell voltage deviations for my Mavic 3 batteries. It shows the number of minor cell voltage deviations per minute as well as the major cell voltage deviations. While I don’t have any major cell voltage deviations I have one cell with 17 minor cell voltage deviations. Is this an early indication of a failing battery? How high of a number here would be worrisome?

 

[Firejay27]

I personally don't quite understand the way AirData reads the battery information and what is truely considered a bad battery or not. I have an origional MA battery that shows no real issues according to the data but twice I've flown with it and it's come back swolen. Never an issue when charging however that battery has now been shelved.