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About Swollen Batteries for Mini 2
6635 33 2023-2-19
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Edwin T
lvl.4
Flight distance : 853645 ft
Malaysia
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Hi guys,

Question about the battery swollen, I've flown for almost 2 years now it dosen't has this issues came out.
Just this year that the battery start swollen rapidly during storing, as the battery charge for each battery are mantain between 50% (About 2 - 3 blinking lights) as usual. All battery unplug from any device, just simply inside the DJI bag stored in 1 place.
When I want to fly it again, all the battery are swollen.
Till you can't put it in as usual slide in.
I was wondering is it normal for the battery to swollen after 23 cycles ?
or was it a defect battery ?
Should I get all 3 new batteries for it ?




Battery Cycle

Battery Cycle

All 3 swollen battery

All 3 swollen battery

Battery 2

Battery 2

Battery 1

Battery 1

Battery 3

Battery 3
2023-2-19
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DJI Wanda
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Hello, there. Sorry to hear that. If the battery was swollen and can not use normally. We do not recommend you continue using it.
If your battery is out of warranty period, you can purchase new batteries for your daily use
2023-2-19
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Edwin T
lvl.4
Flight distance : 853645 ft
Malaysia
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DJI Wanda Posted at 2-19 23:40
Hello, there. Sorry to hear that. If the battery was swollen and can not use normally. We do not recommend you continue using it.
If your battery is out of warranty period, you can purchase new batteries for your daily use

Yeah, about to purchase for new battery thanks
2023-2-20
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DJI Wanda
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Edwin T Posted at 2-20 01:32
Yeah, about to purchase for new battery thanks

You are welcome. Please let me know if there is anything we can help you with.
2023-2-20
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Montfrooij
Captain
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Netherlands
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That is worrying.
Just 26 charges.
2023-2-21
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CorsairPilot
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United States
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To put it in better words, if a lithium battery is swollen, it is damaged, and if you charge or discharge it, it may explode.
2023-3-8
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Snoopy70
Second Officer
Flight distance : 6043002 ft
Canada
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I’m curious about this too. I’ve had my drone for 2 years 3 months now. ~95 cycles, and use my drone frequently enough. I live in Canada, and see you’re from Malaysia, so I’m wondering if the heat and humidity might be what shortened your battery life. That and infrequent usage.  ¯\_(ツ)_/¯
2023-3-8
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Bashy
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I would drop all 3 into a bucket of water and leave for 24hrs or so, then bin them appropriately
2023-3-8
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Edwin T
lvl.4
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Malaysia
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Montfrooij Posted at 2-21 00:08
That is worrying.
Just 26 charges.

Yup, I'll have to buy a new one for it.
2023-4-16
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Edwin T
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Malaysia
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CorsairPilot Posted at 3-8 11:02
To put it in better words, if a lithium battery is swollen, it is damaged, and if you charge or discharge it, it may explode.

Yeah, that's why I'll stop using it, as it no longer fits inside the drone. I'll have to get some new batteries for it. Its quite odd too, it get swollen so fast in less than 30 cycles.
2023-4-16
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Edwin T
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Snoopy70 Posted at 3-8 15:01
I’m curious about this too. I’ve had my drone for 2 years 3 months now. ~95 cycles, and use my drone frequently enough. I live in Canada, and see you’re from Malaysia, so I’m wondering if the heat and humidity might be what shortened your battery life. That and infrequent usage.  ¯\_(ツ)_/¯

I'm thinking the same thing as well , because my place are at Sabah state, which is very near Indonesia, so weather here are either super hot or uncontrollable raining days. I think that might affect the drone batteries for storing ?  
2023-4-16
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Edwin T
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Bashy Posted at 3-8 17:44
I would drop all 3 into a bucket of water and leave for 24hrs or so, then bin them appropriately

Does it explode ? I never tried it before, I've thinking about to poke a hole for it & squeeze it back to normal. But then I read a few articles which mention not allowed to do so, so I didn't.
2023-4-16
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Montfrooij
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Edwin T Posted at 4-16 05:54
Yup, I'll have to buy a new one for it.

Sounds like the best thing indeed.
2023-4-16
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Edwin T
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Montfrooij Posted at 4-16 06:25
Sounds like the best thing indeed.

Absolutely
2023-4-22
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Montfrooij
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Hope you have gotten your replacement
2023-4-22
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Shawgod
Second Officer
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United States
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DJI Wanda Posted at 2-19 23:40
Hello, there. Sorry to hear that. If the battery was swollen and can not use normally. We do not recommend you continue using it.
If your battery is out of warranty period, you can purchase new batteries for your daily use

What is the warranty on the batteries?  And are they the same for all batteries made by DJI?
2023-4-23
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yogi053
First Officer
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United Kingdom
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I'm sure I read somewhere that it is 6 months warrnty on Dji batteries. I could be wrong of course.
2023-4-23
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DJI Wanda
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Shawgod Posted at 4-23 07:51
What is the warranty on the batteries?  And are they the same for all batteries made by DJI?

The general warranty period for batteries is 12 Months and less than 200 Charge Cycles.
You may refer to the Warranty Period of the Main Parts for more details:
https://www.dji.com/service/policy?from=store_homepage
2023-4-24
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yogi053
First Officer
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Thanks for the clarification Wanda.
2023-4-24
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Edwin T
lvl.4
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Montfrooij Posted at 4-22 23:56
Hope you have gotten your replacement

Yeah, I did, buying a new battery for it
2023-5-6
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Montfrooij
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Edwin T Posted at 5-6 04:36
Yeah, I did, buying a new battery for it

All good to go now!
2023-5-6
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HerbA
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CorsairPilot Posted at 3-8 11:02
To put it in better words, if a lithium battery is swollen, it is damaged, and if you charge or discharge it, it may explode.

Knew it was bad, didn't know it could explode. Talk about going down in a blaze of glory
2023-5-11
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fans05b8a2cf
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Romania
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Hello, I have the same problem with mine batteries. They swollen when hot and they deflate when cools. I have like 90 charging circles for them. They still fly 20 minutes of time. Will I have to take new batteries too?
2023-10-2
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Snoopy70
Second Officer
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Canada
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I’m at +115 cycles, 2 years 10 months flying. My batteries are slightly swollen when cold, but swell to the point they are  a little tight getting out of the drone.  I’m thinking of buying another DJI Mini 2 battery because of the warranty. I’ll just cycle it through the other 3.
I’ve used my batteries to  <10% a few times, and I’m wondering if that may have precipitated this swelling.   ¯\_(ツ)_/¯
2023-10-3
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djiuser_xfxUKFeQhisn
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Had the same issue, called DJI to see if they would offer a discount (NO) bought aftermarket batt. and Drone Flew Away!
2023-10-3
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bjr981s
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How far do you discharge down to as a percentage per flight. If you fly down to 10% every flight it will reduced the numbers of charge cycles significantly..
And how long do you leave them in months before you charge them again?Oh forgot to add. You cant trust the lights on the battery. Particularly if its been left unused for a couple of months.
I have had batteries show 2 plus 1 blink when attached to a charger it goes to 1 blink.


2023-10-3
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bjr981s
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Snoopy70 Posted at 10-3 03:41
I’m at +115 cycles, 2 years 10 months flying. My batteries are slightly swollen when cold, but swell to the point they are  a little tight getting out of the drone.  I’m thinking of buying another DJI Mini 2 battery because of the warranty. I’ll just cycle it through the other 3.
I’ve used my batteries to

Discharging down to lower than 10 percent will damage the cells in the battery.
2023-10-3
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DJI Tony
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fans05b8a2cf Posted at 10-2 21:37
Hello, I have the same problem with mine batteries. They swollen when hot and they deflate when cools. I have like 90 charging circles for them. They still fly 20 minutes of time. Will I have to take new batteries too?

Hello there. Thank you for reaching out. If the battery returns to normal after it has been kept still and cooled down for a long period of time, the battery is deemed to be normal and can be used continuously. Have a great day.
2023-10-4
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WKKL
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Just had my 3 Min 2 Batteries Bloated - not sure why maybe its really the heat and humidity here in Singapore.
It still works ok I get about 25 plus min of flight time and charge cycle is less than 30.
All 3 have different level of bloat some very some only a bit I can feel from how tight it is to get
it in and out of the charging hub.

Anyway just ranting - looks like its a sign for me to upgrade to the Mind 4 pro..
I still love my mini 2....
2023-10-5
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Snoopy70
Second Officer
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WKKL Posted at 10-5 19:54
Just had my 3 Min 2 Batteries Bloated - not sure why maybe its really the heat and humidity here in Singapore.
It still works ok I get about 25 plus min of flight time and charge cycle is less than 30.
All 3 have different level of bloat some very some only a bit I can feel from how tight it is to get


The general warranty period for batteries is 12 Months and less than 200 Charge Cycles.
You may refer to the Warranty Period of the Main Parts for more details:
https://www.dji.com/service/policy?from=store_homepage

You should look into this first. There must be some way to safely store your batteries in your country to avoid this.
The Mini 4 will most likely have the same problem?
2023-10-6
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WKKL
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Snoopy70 Posted at 10-6 04:01
The general warranty period for batteries is 12 Months and less than 200 Charge Cycles.
You may refer to the Warranty Period of the Main Parts for more details:
https://www.dji.com/service/policy?from=store_homepage

Yah My Mini 2 is over 3 years old now.. so No more warranty.

I hope when I get the Mini 4 I wont have this problem...

So far - my M3 and Spark both dont have the same problem and they are all stored the same way / place..
2023-10-9
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djiuser_aPGEIKfRNxjF
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United Kingdom
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WKKL Posted at 10-9 01:04
Yah My Mini 2 is over 3 years old now.. so No more warranty.

I hope when I get the Mini 4 I wont have this problem...

We make YouTube videos. We have two channels and 5 drones. All the DJI's have the same issue. DJI know about these issues and are doing nothing for their customers.  We are about to buy another drone will it be a DJI???? Guess??? Visit us on YouTube  Your Drone TV. SV Impavidus.
2023-10-30
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DJI Tony
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djiuser_aPGEIKfRNxjF Posted at 10-30 05:55
We make YouTube videos. We have two channels and 5 drones. All the DJI's have the same issue. DJI know about these issues and are doing nothing for their customers.  We are about to buy another drone will it be a DJI???? Guess??? Visit us on YouTube  Your Drone TV. SV Impavidus.

Hi there. Batteries work via an electrochemical process and anything that may alter this process such as over-discharging, crashes, water damage, etc. can result in a swollen battery. To avoid swollen batteries, please use and maintain your battery following the instructions that came with your product.
2023-11-22
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neoborg
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United Kingdom
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I have today noticed that two of my three batteries were slightly swollen today after flying.  The batteries were quite warm, so I've put the swelling down to the heat and have allowed them to cool for a few hours before finally charging them.  I am worrying a little now, as I read above that the swollen batteries can explode while charging - meanwhile, only the first of the two batteries has started to charge.  #prayforme

The batteries are originals which came with the drone, when purchased ~2.5 years ago.  I can't be sure without checking, but I'm certain the batteries have less than 100 cycles each.

Due to living in the UK, sometimes I can't fly for weeks but leave the batteries in the 3-way charging hub.  I've always understood and found that the batteries discharge themselves when not used for a while, putting my trust in the hub and the 'intelligent' batteries to do their work.

When using the batteries, I usually try not to get below 20%, aiming for 25% most of the time.  I don't charge the batteries up if they have discharged themselves, but maybe I should?

If the batteries are significantly swollen after a successful charge, I am going to put the swelling down to heat.  Otherwise, there is something wrong with how I store and/or use the batteries.
5-12 07:42
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