Hello there crash1sttime. Thank you for reaching out and I am sorry for the trouble this has caused. The DJI Mini 2 has an Auto-Discharging Function to prevent swelling. The battery automatically discharges to approximately 96% of the battery level when it is idle for one day, and automatically discharges to approximately 72% of the battery level when it is idle for five days. It is normal to feel moderate heat being emitted from the battery during the discharging process. Thank you.

I have the same. After 7 days idle-battery still have 96-97%. Come on DJi. You can do it!

Mine dont neither , after 5 days still 97%

DJI Stephen Posted at 6-23 01:16
Hello there crash1sttime. Thank you for reaching out and I am sorry for the trouble this has caused. The DJI Mini 2 has an Auto-Discharging Function to prevent swelling. The battery automatically discharges to approximately 96% of the battery level when it is idle for one day, and automatically discharges to approximately 72% of the battery level when it is idle for five days. It is normal to feel moderate heat being emitted from the battery during the discharging process. Thank you.

The DJI Mini 2 has an Auto-Discharging Function to prevent swelling. The  battery automatically discharges to approximately 96% of the battery  level when it is idle for one day, and automatically discharges to  approximately 72% of the battery level when it is idle for five days.




Did you watch the video Stephen? I clearly state that its been 7 days and they have only discharged to 96% and 92%.


Explain that.

I am sure the moderators on here are bots. Havent seen one genuine descent explanation for a problem that has been spoken about on here. Copy and paste from the manual, thats all

robpri Posted at 6-23 02:11
I am sure the moderators on here are bots. Havent seen one genuine descent explanation for a problem that has been spoken about on here. Copy and paste from the manual, thats all

I agree fully

I left my 3 batteries outside the dock for 6 days after the recent firmware update and they only discharged to 92 and 96% as well. It's clearly not working.

Mine is the same so this problem is still not fixed

Come on DJI sort this out

I was testing discharge a couple of weeks ago but stupidly never allowed for the fact that plugging in to check the battery (or plugging anything into hub) was resetting the discharge countdown timer everytime , Ooops !

I'm sure it was just me being dumb but thought id give it a mention here in case anyone else might be making same mistake

Cheers

Same for me, all batteries showing 4 leds after 6 days. I am manually discharging them again.

IrishD Posted at 6-23 09:09
I was testing discharge a couple of weeks ago but stupidly never allowed for the fact that plugging in to check the battery (or plugging anything into hub) was resetting the discharge countdown timer everytime , Ooops !

I'm sure it was just me being dumb but thought id give it a mention here in case anyone else might be making same mistake

Not sure that plugging/pressing does reset the count down, seems not even DJI know from what I’ve read

Same here,  I did the firmware update on all three batteries and made sure they were all full,  now 7 days later all three batteries have discharged to 95%

Same with me.

Someone on Mavicpilots forum just posted a screen shot of the manual and it says 9 days?

I have noticed the same actually, it only starts to drop to 72% after day 8 or 9. It does however get there... even before the update mine discharged to 72% but outside the hub... currently on day 5 with them inside hub... will take a look on day 8

Switch639 Posted at 6-24 02:28
I have noticed the same actually, it only starts to drop to 72% after day 8 or 9. It does however get there... even before the update mine discharged to 72% but outside the hub... currently on day 5 with them inside hub... will take a look on day 8

I have 3 in the hub one in the drone and one loose and none have discharged since the day of the update

DJI Stephen Posted at 6-23 01:16
Hello there crash1sttime. Thank you for reaching out and I am sorry for the trouble this has caused. The DJI Mini 2 has an Auto-Discharging Function to prevent swelling. The battery automatically discharges to approximately 96% of the battery level when it is idle for one day, and automatically discharges to approximately 72% of the battery level when it is idle for five days. It is normal to feel moderate heat being emitted from the battery during the discharging process. Thank you.

DJI Steven:

What breed of dog is taller, Labrador or Pomeranian.
Does paint dry faster using heat or cold?

Just trying to determine if you're actually a human or a bot.

crash1sttime Posted at 6-23 11:59
Not sure that plugging/pressing does reset the count down, seems not even DJI know from what I’ve read

I've only tested with putting the battery in the drone and powering-up, this does interrupt the timer.
I'm not sure what happens if u plug into the hub with either a mains input or a usb output but i'd imagine that would interrupt it too ?

I've been testing my 3 batteries since the update and they seem to be working.
battery 1 in the hub was down to 97% after 27hrs
battery 2 out of the hub was at 98% after same amount of time
battery 3 is sitting in the hub right now untouched for 4days... i'll give it 10 days and check it, that should be around the 72%mark by then (9 days according to pg21 of the manual)
https://dl.djicdn.com/downloads/ ... _User_Manual_EN.pdf

not sure it matters much but the production date on these batteries is 2020-11

crash1sttime Posted at 6-24 01:22
Someone on Mavicpilots forum just posted a screen shot of the manual and it says 9 days?

EDIT: Seems they updated the manual 16th of June, it now says nine days indeed. (Manual version 1.4)
The manual in the picture is a bit older.

Switch639 Posted at 6-24 02:28
I have noticed the same actually, it only starts to drop to 72% after day 8 or 9. It does however get there... even before the update mine discharged to 72% but outside the hub... currently on day 5 with them inside hub... will take a look on day 8

It's probably good to keep them out of the hub anyway, because if you take one out to fly I guess it wakes up and resets the "idle timer". Though I haven't tested it.

rEaX Posted at 6-24 14:42
It's probably good to keep them out of the hub anyway, because if you take one out to fly I guess it wakes up and resets the "idle timer". Though I haven't tested it.

yeah it is you're right also maybe because it could possibly swell a little

I also find out that auto discharge function is not working. All 3 batteries was updated, they was idle for 6 days, and no discharge.

6days is too short it sounds like... also previously it took mine 8 days +/- ... I will take a look on Sunday then I have again day 8

currently on day 8 and no change to my battery level, will look again tomorrow and tuesday would be day 10

Switch639 Posted at 6-26 22:33
currently on day 8 and no change to my battery level, will look again tomorrow and tuesday would be day 10

How do you check actually ?

You do know that every time you activate your charging hub or in the drone, the countdown is reset and starts from day one.

thats helpful to know, then I have to start all over

Switch639 Posted at 6-27 00:54
thats helpful to know, then I have to start all over

My batteries did discharge out of the charger. I am testing now if they will do it in the charger as well with the new firmware.  So, I hope I can check them in a couple of days.

I've experienced that with my batteries of my M2P too. Those batteries have a knob on top. If you press the knob to check the charge, the sequence is reset. As long as I pressed the knob every day, they kept the charge. When I left them alone, the charge went down.

I checked just for interest the level and they were all three at 92% after 8 days, they dropped 1% per day then even though I reset the process but yes previously out of the hub mine did discharge to 72% as well.

My results for auto discharge after 9 days waiting: no improvement after the update. Batteries do definately not discharge as described in the manual after 5 days !

Bat1 in charging hub = aprox. 93%
Bat2 not in charging hub = aprox. 93%
Bat3 not in charging but checked at day 7 = approx. 93%

MySky Posted at 6-28 07:16
My results for auto discharge after 9 days waiting: no improvement after the update. Batteries do definately not discharge as described in the manual after 5 days !

Bat1 in charging hub = aprox. 93%

I’ve had a chat with a chap who builds modded batteries, he used his specialist software tool to analyze the battery’s over time and it seems that they don’t discharge as DJI says, all the FW update seems to have done is change how the % is calculated.
Further he says that he can’t see any FW changing the situation as it would need resistors to discharge them.

Seems to me as a novice that DJI made a mistake with the batteries when producing them and now they are trying to fix the issue.

crash1sttime Posted at 6-28 07:56
I’ve had a chat with a chap who builds modded batteries, he used his specialist software tool to analyze the battery’s over time and it seems that they don’t discharge as DJI says, all the FW update seems to have done is change how the % is calculated.
Further he says that he can’t see any FW changing the situation as it would need resistors to discharge them.

There is a circuit board in there that should be able to do that -

crash1sttime Posted at 6-28 07:56
I’ve had a chat with a chap who builds modded batteries, he used his specialist software tool to analyze the battery’s over time and it seems that they don’t discharge as DJI says, all the FW update seems to have done is change how the % is calculated.
Further he says that he can’t see any FW changing the situation as it would need resistors to discharge them.

The chap you spoke to is wrong. These batteries have the capability to self-discharge.

rEaX Posted at 6-28 08:42
The chap you spoke to is wrong. These batteries have the capability to self-discharge.

Not according to the people in this thread and many others on different forums

Switch639 Posted at 6-27 20:55
I checked just for interest the level and they were all three at 92% after 8 days, they dropped 1% per day then even though I reset the process  but yes previously out of the hub mine did discharge to 72% as well.

Hi Switch639,

left my 3 batteries in the charger hub for 9 days. All 3 are now below 75% charge (3 leds).
Didn't push the knobs during that period.
Did the same test before the latests firmware and they stayed charge 100%.
So, ...  for my batteries it seems to be fixed.

alright great to know it will work if I dont touch nothing... I guess everyone was too keen to check it out

Auto discharge worked for me! Have the batteries in the hub, have been pressing the button to check the levels at 24 hours, 5, 7 and 9 days. 24 hours, 5 and 7 days all four lights were solid but day 9 three lights were solid with the fourth blinking.

Also having them in the hub and pressing the button doesn’t reset the counter.

AussieDronePilot Posted at 6-29 16:47
Auto discharge worked for me! Have the batteries in the hub, have been pressing the button to check the levels at 24 hours, 5, 7 and 9 days. 24 hours, 5 and 7 days all four lights were solid but day 9 three lights were solid with the fourth blinking.

Also having them in the hub and pressing the button doesn’t reset the counter.

Thanks a lot for the info, really nice to know that

day 9 is the magic charm