M2P Batteries - One Cell is showing lower voltage and efficiency than the others

[Garatshay]

I fly an M2P and I have had zero battery problems with the three that I rotate through the aircraft. However, on recent checking in Airdata's Power section, I noticed in the 'battery cells' section that cell #4 was showing a noticeable difference from the other three. It is nudging into the amber / orange area. Has anyone else seen this sort of anomaly. My initial reaction is to keep a more careful eye on performance going forward and to clean all the battery terminals in the drone, charger and individual batteries to see if a poor connection might be an issue. Any thoughts from the community..?

 

[maggior]

I'm curious about this myself. One of my batteries has cell 3 edging outside the green area. I'm not sure if it is getting worse or if it is just how it was when the battery was manufactured.

 

[Garatshay]

I'm curious about this myself. One of my batteries has cell 3 edging outside the green area. I'm not sure if it is getting worse or if it is just how it was when the battery was manufactured.

I think I'm relieved to hear that my issue is not unique. I'll be monitoring the situation closely - can't accept a battery failure in flight. Looking back at my flight logs with Airdata - the issue appears to be recent - not noticeable from new. I might try the recommended deep discharge and recharge..

 

[MaxHam]

This how ist starts with batteries going bad. Eventually after 40-50 full charges they'll bloat.
I have disposed 13 batteries so far.

 

[Garatshay]

That doesn't sound good - but thanks for the info - I'll be keeping a close eye on this battery after every flight..