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Leaving batteries fully charged
3576 26 2018-8-26
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Christine96
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Is it ok to leave the MA batteries fully charged?  I haven't flown mine is a while because I've been flying my Phantom but the batteries are still fully charged.
2018-8-26
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msinger
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They should start auto discharging down to the storage level after 10 days.

How long have them been full charged?
2018-8-26
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Dirty Bird
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As msinger said, they will begin auto-discharge after 10 days.  Each time you push the button to check the 10 day countdown begins anew.  The discharge occurs slowly over several days & the batteries will feel slightly warm while discharging.  I've often wondered why DJI chose not to have the battery LEDs blink or do something to indicate a discharge is in progress?
2018-8-26
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Koelkop
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It is not really ok to leave your batteries stored at 100%, auto discharge or not. The auto discharge should only come into play if you forgot them at 100%. It can be set from 1 to 10 days.

Store your batteries at around 60% when you are not going to use them within the next 2 or so days.

This is to extend the life of the batteries.
2018-8-26
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msinger
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For some strange reason, pressing the button on Mavic Air batteries does not reset the 10-day countdown.
2018-8-26
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msinger
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Koelkop Posted at 2018-8-26 12:50
It is not really ok to leave your batteries stored at 100%, auto discharge or not. The auto discharge should only come into play if you forgot them at 100%. It can be set from 1 to 10 days.

Store your batteries at around 60% when you are not going to use them within the next 2 or so days.

The default setting is 10 days. Unfortunately, it cannot be changed in DJI GO.
2018-8-26
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Koelkop
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msinger Posted at 2018-8-26 12:56
The default setting is 10 days. Unfortunately, it cannot be changed in DJI GO.

Is that the case on the mavic air? On the Pro I can adjust it, mine is set on 2 days
2018-8-26
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msinger
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Koelkop Posted at 2018-8-26 13:01
Is that the case on the mavic air? On the Pro I can adjust it, mine is set on 2 days

That's the case on the Mavic Air. It's what the OP is using.
2018-8-26
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Christine96
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msinger Posted at 2018-8-26 12:38
They should start auto discharging down to the storage level after 10 days.

How long have them been full charged?

Probably more than 10 days but I've checked them a few times which I think resets the 10 day cycle.  
2018-8-26
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DJI Tony
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Hi, Thanks for the inquiry, regarding the battery storage we have documentation that you may refer. Please see the image below for the advisable storage of your battery. Please don't hesitate to reach us if you need our help. Thank you.

2018-8-26
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Dirty Bird
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msinger Posted at 2018-8-26 12:50
For some strange reason, pressing the button on Mavic Air batteries does not reset the 10-day countdown.

Interesting.  Must be unique to the Air.  Not a bad idea either.  I've read the discharge timer is fixed to 10 days on the Spark & Air.
2018-8-26
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Hellsgate
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Christine i would suggest that you manually discharge them down to around 60% then leave them alone untill you are ready to fly again ie dont press the button to check them every cple of days.
After a month or so then yes check them but if your planning on not using the drone for quite some time only recharge untill the 3rd light starts to flash then remove from the charger.
To manually discharge just simply go for a fly or let the drone hover untill battery is at around 60% then remove the battery do this for each battery.
2018-8-26
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Christine96
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Hellsgate Posted at 2018-8-26 15:35
Christine i would suggest that you manually discharge them down to around 60% then leave them alone untill you are ready to fly again ie dont press the button to check them every cple of days.
After a month or so then yes check them but if your planning on not using the drone for quite some time only recharge untill the 3rd light starts to flash then remove from the charger.
To manually discharge just simply go for a fly or let the drone hover untill battery is at around 60% then remove the battery do this for each battery.

Thanks I'll try that.
2018-8-26
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Hellsgate
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If you have had the drone for some period of time dont forget to do a deep discharge cycle prob every 6 months should be fine.
2018-8-26
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Christine96
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Hellsgate Posted at 2018-8-26 16:17
If you have had the drone for some period of time dont forget to do a deep discharge cycle prob every 6 months should be fine.

I've only had it a few months.
2018-8-26
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Hellsgate
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You will be fine just dont leave them in a fully charged or discharged state between 50 and 65 % is the best range for them to be stored in
2018-8-26
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Christine96
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DJI Tony Posted at 2018-8-26 14:52
Hi, Thanks for the inquiry, regarding the battery storage we have documentation that you may refer. Please see the image below for the advisable storage of your battery. Please don't hesitate to reach us if you need our help. Thank you.

[view_image]

Is there a way to discharge the batteries without flying the drone?  
2018-8-27
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rolling56
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There are videos on this same subject here.
2018-8-27
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DJI Tony
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Christine96 Posted at 2018-8-27 14:13
Is there a way to discharge the batteries without flying the drone?

Hi, Thanks for your prompt reply. You can use the discharge option in the DJI GO 4 app under battery settings, you can discharge the battery depending on how long you will put the battery on the storage mode, however, the maximum would be 10 days and turning on the battery will reset the discharging process. Please let us know if you have other concerns.
2018-8-28
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Atlas_Aus
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Thailand
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Hi all,

Newbie here... So I should not leave my batteries on the charger until next flight ? At the moment I am flying nearly every day....
2018-8-28
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msinger
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Atlas_Aus Posted at 2018-8-28 09:26
Hi all,

Newbie here... So I should not leave my batteries on the charger until next flight ? At the moment I am flying nearly every day....

It's fine to charge the batteries daily if you're going to use them daily.
2018-8-28
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Atlas_Aus
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msinger Posted at 2018-8-28 13:13
It's fine to charge the batteries daily if you're going to use them daily.

Thanks,

But I mean leaving them on the charger until I am ready to use next time ?
2018-8-28
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FntX
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Atlas_Aus Posted at 2018-8-28 21:31
Thanks,

But I mean leaving them on the charger until I am ready to use next time ?

From a safety standpoint you shouldn't do that. Ever. With any rechargeable-battery powered device.

The battery will drop in voltage within a specific range in a specific time window and as soon as this is the case, the charger will start to charge the cell. This stop-and-go condition might damage the cell or at least decreases the lifespan of the battery.

Charge them and disconnect the batteries as soon as they are fully charged. Leaving them on the charger for a few hours after charging is no problem at all. But always try not to charge batteries unsupervised and always on a fireproof surface...

I had a phone battery in my hands when it went bang and I can tell you LiPo batteries are vicious little beasts!
2018-8-28
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Atlas_Aus
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FntX Posted at 2018-8-28 22:11
From a safety standpoint you shouldn't do that. Ever. With any rechargeable-battery powered device.

The battery will drop in voltage within a specific range in a specific time window and as soon as this is the case, the charger will start to charge the cell. This stop-and-go condition might damage the cell or at least decreases the lifespan of the battery.

Thanks mate.

I wasn't sure it was drone specific batteries.

I have had camera and AAA/AA rechargeable for years and have always left them on charge and never noticed a reduced life or other issue.


I tend not to plan to 'shoot' too often, so it's nice to have charged batteries waiting when I do... Though with the cost of these drone batteries I may do as you suggest.
2018-8-29
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msinger
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Atlas_Aus Posted at 2018-8-28 21:31
Thanks,

But I mean leaving them on the charger until I am ready to use next time ?

As @FntX noted above, it's not safe to charge batteries while unsupervised. While DJI battery fires are quite rare, you don't want to be the one to lose a house over it.
2018-8-29
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djiuser_na5YlufudV5u
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Actually learned a lot reading this thread!
2018-12-16
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DJI Tony
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djiuser_na5YlufudV5u Posted at 12-16 12:34
Actually learned a lot reading this thread!

Hi, we're glad that it came conveniently to you visiting our forum. I would recommend reading the manuals and safety guidelines when using the drone via our website. You may refer to the link below. Please let us know if you need our assistance. Thank you for the support.

www.dji.com
2018-12-16
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