batteries overheating and melting plastic? M2 & now dropped from the sky

[GZ4]

i have 3 batteries, two of them looks like this at the connections, so opened a case with DJI to replace them.

My third battery is new so should be a problem right? drone fell from the sky today.

thank god for dji care, but wondering if anyone having this issue?

 

[GZ4]

looked at the connection in the drone itself, and those are now burned too.

 

[sar104]

The aircraft appears to have bigger problems than the battery connection.

 

[GZ4]

yup, dropped from the sky today but the battery was still full... dji going to replace it but still sucks i have to wait now weeks

The aircraft appears to have bigger problems than the battery connection.

View attachment 100123

 

[MAvic_South_Oz]

Would be interesting to find the battery manufactured dates.
Maybe that's on the batteries, or maybe you have to check out via the serial numbers.
There was a bad batch(es)batteries in 2018 apparently, but even now still we see swelling in flight and batteries popping.

Might pay to get a suitable velcro strap to put around the new setup, it stops them from ejecting at least.
Keep an eye on the swelling.

If you haven't already seen threads here, search here on the forum, say terms like > M2 battery swelling eject
Most of these posts will be in the this crash section of the forum.

 

[GZ4]

Battery didnt come off, matter fact was still on the drone when it landed on the floor.

Is the connections from battery to drone which are overheating and melting making a disconnect dropping the drone from the sky.

 

[GZ4]

I think I discovered a flaw

 

[MAvic_South_Oz]

Yep, that's different, I had read DJI are replacing, that's good.
So to get that, you sent the drone in ?
I can't imagine they would have said they are replacing without inspecting the drone ?

There is obviously a power connection issue to cause such a short, haven't ever seen anything like that in the forums here though.

 

[GZ4]

Well ya returned on the way now, and yes inspection first.

 

[Jetdriver100]

Loose connections will create heat. I wonder if one of the hot batteries made the connection weak for the other batteries?

 

[GZ4]

Loose connections will create heat. I wonder if one of the hot batteries made the connection weak for the other batteries?

Not sure but DJI wanted me to send them all the batteries as well.

 

[Aaron24]

Would be interesting to find the battery manufactured dates.
Maybe that's on the batteries, or maybe you have to check out via the serial numbers.
There was a bad batch(es)batteries in 2018 apparently, but even now still we see swelling in flight and batteries popping.

You can check in the settings of DJI Go 4 app in the batteries section and it will tell you month and year build date.

 

[GZ4]

You can check in the settings of DJI Go 4 app in the batteries section and it will tell you month and year build date.

I'll check that in a few, I'll report back

 

[Jetdriver100]

Not sure but DJI wanted me to send them all the batteries as well.

Hope they find the answer! Post it for sure so we all know.

 

[GZ4]

Me2, if is a design flaw means will happen again but then again no one here said they have seen this before so maybe my drone was a lemon

we will see in about 2 weeks

Hope they find the answer! Post it for sure so we all know.

 

[Jetdriver100]

Me2, if is a design flaw means will happen again but then again no one here said they have seen this before so maybe my drone was a lemon

we will see in about 2 weeks

I'll be waiting

 

[method007]

It’s completely possible the battery swelled slightly, causing the battery to lift but not actually disengage the safety latches, producing a gap at the battery terminal.

 

[GZ4]

I will try to find a photo of the connections, dji replaced it all with new no real explanation of why.

 

[Jetdriver100]

I will try to find a photo of the connections, dji replaced it all with new no real explanation of why.

Good that it's all replaced. Would be nice to know the issue though. Then we could watch for warning signs.

 

[Imnotsure_YT]

Wait are the orange propellers the one you were using?