Batteries slightly swelling after flight...cause of concern?

gleavitt513 · 2025-02-13T13:21:03-0500

I have had my Mavic Air 2 fly more combo for around 3 years now, and it has served me well. However, I have noticed that the batteries will puff ever so slightly after a flight. At first it was hardly noticeable. I couldn't even tell unless I put a ruler against the battery. Although recently the swelling has become more pronounced. It is not severe, but noticeable. The swelling only lasts for a few minutes after a flight, while the batteries are still warm, then it goes back to normal after they cool down. Will this become a more dangerous problem in the future? Would this become a problem in hotter weather? I do also plan on selling my Air 2 soon, could this become a problem for a potential future owner?

Thanks.

GFields · 2025-02-13T13:22:03-0500

Discard swelling batteries.

msinger · 2025-02-13T13:35:00-0500

gleavitt513 said:
Will this become a more dangerous problem in the future? Would this become a problem in hotter weather?

While it may not be extremely dangerous to continue using them (aside from the risk of failure), you should never charge damaged batteries. They could catch fire during charging. You should dispose of them and buy new batteries.

gleavitt513 · 2025-02-13T14:08:28-0500

GFields said:
Discard swelling batteries.

Unfortunately what I might have to do.

gleavitt513 · 2025-02-13T14:10:35-0500

msinger said:
While it may not be extremely dangerous to continue using them (aside from the risk of failure), you should never charge damaged batteries. They could catch fire during charging. You should dispose of them and buy new batteries.

As I don't have any other batteries, I may end up using them for a little while longer. How do I know when they are at the end of their lifespan? They don't swell or get warm when charging.

msinger · 2025-02-13T14:12:54-0500

gleavitt513 said:
How do I know when they are at the end of their lifespan?

The issue isn't that these batteries are at the end of their lifespan. They're damaged and should be discarded immediately.

Charging damaged batteries is extremely dangerous and could start a fire, potentially destroying your home.

Itzmyobsession · 2025-02-13T15:13:28-0500

Discard them safely...just had to purchase 3 new batteries for my mini 2.
All 3 started to exhibit the same swelling your seeing. Purchased OEM batteries from DJI.
Didn't want to potentially burn my house down for the sake of a $40.00 battery

Erk1024 · 2025-02-13T15:36:41-0500

FYI,

This is more likely to happen if you keep your batteries are kept charged at 100% for long periods. Better to store them at 80% or lower. I think 65% is optimal, but anything in the 30-80% range is good.

If I charge up my batteries and then don't end up using them on a flight, then I take the drone out on the street and do a quick flight to get them down to a reasonable level. Ten minutes of hovering in the living room works too.

Dronecation · 2025-02-13T16:03:49-0500

gleavitt513 said:
As I don't have any other batteries, I may end up using them for a little while longer. How do I know when they are at the end of their lifespan? They don't swell or get warm when charging.

Contact DJI and ask them about the batteries. If it is very slight swelling after flying, and settles down shortly afterwards, then you should be okay for a bit longer. Don't charge when swelled and hot. Never charge them unattended. DJI should guide you to the correct action instead of second guessing answers on the forum.