HOW TO: Monitor battery voltage to watch for signs of failure

[msinger]

It's important to monitor the battery voltage in each cell of the DJI smart battery. Be aware of the following:

1) Monitor the battery to ensure all cells maintain a similar voltage.
2) Do not allow any of the battery cells to drop below 3.3V.
3) Consider landing your Mavic when (or before) the first battery cell reaches 3.4V.
4) Your battery will shut off mid-flight if the voltage drops below 3.0V.

You can display the voltage of the lowest battery cell on the main screen of the DJI GO application. To do so, enable the "Show Voltage On Main Screen" setting in the "Aircraft Battery" --> "Advanced Settings" section of the DJI GO settings.






Once enabled, the lowest battery cell voltage will appear at the top, right of the DJI GO application -- like this:




In the "Remote Controller Settings" section of the DJI GO settings, you can set either C1 or C2 to "Battery Info" to quickly open/close the battery settings.




Below is an example that shows a battery that has a consistent voltage in each battery cell.




And, here's an example that shows a damaged battery:




It's important to ensure your battery is in good health prior to takeoff. Flying with a battery that has one or more bad cells could cause the battery to discharge very quickly and/or your Mavic to shut off mid-flight and drop from the sky.

 

[Loppy]

Great idea, on it.

 

[Steve]

Thank you for the info!! Awesome job as usual!

 

[Mako79]

Wow.. Its a 3s. I hope its a proper 3s and not like the p2's dodgy 3x2 config.

 

[gregw]

The voltage on the top of the screen only shows the total voltage, not lowest cell voltage..

 

[kmaluo]

The voltage on the top of the screen only shows the total voltage, not lowest cell voltage..

On Android. Hopefully they fix that soon.

 

[Anthony]

I have added this to my config list ...

 

[F6Rider]

I learned this first hand back in my P2 days, when I finished a flight I was messing around forcing it to fly, when it wanted to land due to low battery, (yeah I know). I was only 5' off the grass but the motors just all shut off at once and down she went. No damage but scared the crap out of me, lesson learned, I kept a sharp eye on my battery after that and never had another issue.

 

[Zandian]

Very helpful guys thanks!


Sent from my iPhone using MavicPilots

 

[Wysiwyg]

This is awesome. Thanks for sharing @msinger !

 

[PilotMan7700]

Thanks for the tip on how to monitor the batteries.

For $89 a pop though, you think these batteries would be able to monitor the voltage for you and warn you of an unhealthy cell.


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[msinger]

For $89 a pop though, you think these batteries would be able to monitor the voltage for you and warn you of an unhealthy cell.

DJI GO sometimes shows alerts when battery cells are damaged. It never hurts to double-check yourself before takeoff though.

 

[duelingglove]

Jesus, Mary and Joseph[emoji102][emoji15] Can you imagine your little [emoji211] dropping dead....from a dead battery. I'm sweating thinking about it


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[raberrio]

I am using the mavic for fun on weekends, no flights in the weekdays. Now i have 3 batteries and I store them with 50% of charge, is it ok?

 

[msinger]

i have 3 batteries and I store them with 50% of charge, is it ok?

Yes.

 

[raberrio]

thanks

 

[SoapyGolem]

Yes.

Hey msinger I have 1 question on this i have two batteries and one battery is volts 12.1 with cells at 4.1..... volts and my older battery is at 11.9 volts with cells at like 3.8, 3.9 so my question is the battery dying? or is this normal? Thanks again

 

[stratos]

As far as I know this batteries can warn you if the health is not good enough to be used , i think I read something about it in DJI website.

 

[SoapyGolem]

It's important to monitor the battery voltage in each cell of the DJI smart battery. Be aware of the following:

1) Monitor the battery to ensure all cells maintain a similar voltage.
2) Do not allow any of the battery cells to drop below 3.3V.
3) Consider landing your Mavic when (or before) the first battery cell reaches 3.4V.
4) Your battery will shut off mid-flight if the voltage drops below 3.0V.

You can display the voltage of the lowest battery cell on the main screen of the DJI GO application. To do so, enable the "Show Voltage On Main Screen" setting in the "Aircraft Battery" --> "Advanced Settings" section of the DJI GO settings.

View attachment 1007

View attachment 1008


Once enabled, the lowest battery cell voltage will appear at the top, right of the DJI GO application -- like this:

View attachment 1009


In the "Remote Controller Settings" section of the DJI GO settings, you can set either C1 or C2 to "Battery Info" to quickly open/close the battery settings.

View attachment 1010


Below is an example that shows a battery that has a consistent voltage in each battery cell.

View attachment 1011


And, here's an example that shows a damaged battery:

View attachment 1012


It's important to ensure your battery is in good health prior to takeoff. Flying with a battery that has one or more bad cells could cause the battery to discharge very quickly and/or your Mavic to shut off mid-flight and drop from the sky.

I did notice in the first picture as well your voltage is a 11.3 and your cells are at 3.75 is that battery going out as well? or is it just because the battery is low?

 

[SoapyGolem]

As far as I know this batteries can warn you if the health is not good enough to be used , i think I read something about it in DJI website.

Yeah i thought so to, just notice different cell life between my batteries... and wondering if i just need to charge them up? or they just go bad