Is ever so slightly swollen battery no good?

[WithTheBirds]

Here's a topic where two of us took our batteries apart:

open mavic 2 battery

I haven't found any tutorials on this anywhere... I (stupidly) crashed my Mavic 2 in a river a couple of weeks ago. I have the refresh thing from DJI and received a replacement drone and battery within a week. This leaves me with the battery that got wet. It charges just fine. I even put it...

mavicpilots.com

Thanks

 

[hiflyer201]

I have three Mavic Air batteries. One completely flat bottomed and the other two with slight swelling. I stopped using the very slightly swollen batteries and then the perfectly flat one failed in flight. Low Voltage landing.. I aimed at a smooth spot and landed. Airdata said the battery had 90% charge moments before the warning and that the battery had 81% when it landed. I got to thinking that the warning and subsequent landing was a fluke and flew the battery three times in my back yard and on the forth flight..bingo it did it again. Airdata has never shown a problem with my slightly swollen battries and I am seriously considering flying them again after reading a couple of these posts. I have a bunch of Spark batteries and none have the slightest swelling.
I agree that there are probably a zillion cell phones in use with swollen batteries.

 

[Thomas B]

Flying with known swelling batteries will help to keep DJI in business for all DJI users.

 

[nomakase]

replace it

 

[MAvic_South_Oz]

Batteries and props are 2 things that if you need to ask if something is ok, it's probably best to just replace.
Even with the battery cost, compare that to the M2 replacement cost if it fell from a height when a battery pops out.
Happy and safe flying.

 

[MAvic_South_Oz]

i have had my Mavic pro fly more kit for almost two years and have just noticed all three batteries are showing signs of swelling (one worse than the others i'm replacing all to avoid a disaster. What prompted me was the poor clipping into place. SHAME ABOUT THE PRICE.

Yeah hard to find anyone under AUD$149.
I did pick up a couple of extras just a few weeks ago, Teds Cameras.
Got them for $99.50 each
Might be worth emailing them as I think they were clearing them, they aren't listing the M1P or batteries on their website now (or when I purchased).

My 3 original flymores are 3 years old, no swelling at all, a 4th battery bought about 2 years ago is all good too.
Hope that remains the case, so 6 batteries for long trips and less fuss charging in the field.