I noticed recently that the fully Charged batteries, there show only 96% on the next day's fly. I have four batteries and all are the same. I don't know whether it is normal or not. The battery charging cycles are not too high (40-50). There is no accident happened before, and no mal-use.


Does anyone experience the same situation?


THanks ahead for your reply.

It is quite normal, the % charge is based on battery voltage which will drop a little after a re-charge. Cheers

ssylca44 Posted at 12-22 06:42
It is quite normal, the % charge is based on battery voltage which will drop a little after a re-charge. Cheers

Thank you for your reply.
I am just wondering that 4-5% drop will reduce the duration/distance of fly. I feel happy if it is still quite normal.
Wish you a Merry Christmas!

Hello and good day. Thank you for reaching out and for the inquiry. ssylca44 is correct on post #2. In addition, I will be posting a link where in you can see the DJI Mavic 2 Intelligent Flight battery Guidelines. Thank you.

https://dl.djicdn.com/downloads/ ... y_Guidelines_EN.pdf

djiuser_PEp4mLwh74c7 Posted at 12-22 07:09
Thank you for your reply.
I am just wondering that 4-5% drop will reduce the duration/distance of fly. I feel happy if it is still quite normal.
Wish you a Merry Christmas!

Merry Christmas too djiuser. The real flight time is always somewhat less than the DJI published value, 4-5% wouldn't make any difference.

Being a battery guy, it is very normal. Could be storage temperature as well, warmer storage temps will cause a slightly higher discharge rate. I actually store mine in the fridge and it slows the discharge rate considerably.

DJI Stephen Posted at 12-22 08:33
Hello and good day. Thank you for reaching out and for the inquiry. ssylca44 is correct on post #2. In addition, I will be posting a link where in you can see the DJI Mavic 2 Intelligent Flight battery Guidelines. Thank you.

https://dl.djicdn.com/downloads/Mavic_2/20180823/Mavic_2_Intelligent_Flight_Battery_Safety_Guidelines_EN.pdf

Thanks for your reply.

Have a nice Holiday

Brownie Posted at 12-23 07:06
Being a battery guy, it is very normal. Could be storage temperature as well, warmer storage temps will cause a slightly higher discharge rate. I actually store mine in the fridge and it slows the discharge rate considerably.

What's the max cycle number for a Mavic 2 battery? I do know that checking the voltage balance on scream of SC is importance. .

djiuser_PEp4mLwh74c7 Posted at 12-23 07:47
Thanks for your reply.

Have a nice Holiday

You are very much welcome. If you have any other inquiries or concerns with DJI. Please feel free to post it here at DJI Forum. We are all here to help and support you. Happy Holidays. .

ssylca44 Posted at 12-22 06:42
It is quite normal, the % charge is based on battery voltage which will drop a little after a re-charge. Cheers

Hold on:

If this phenomenon is normal, why battery for Mavic Pro Platinum can maintain 100% battery for at least a week?

I did the comparison of much younger Mavic 2 battery with the much older Mavic Pro Platinum Battery charged the same evening, and flied next morning. M2P battery  was 95% and MPP battery was still 100%. More interestingly, fly-time for MPP was 4 minutes longer than M2P battery.

I wish DJI stuff gives us a proper explanation.

djiuser_PEp4mLwh74c7 Posted at 12-26 08:34
Hold on:

If this phenomenon is normal, why battery for Mavic Pro Platinum can maintain 100% battery for at least a week?

Battery charge level is not an exact science like measuring in the amount of liquid in a vessel, it is only based on voltage which can fluctuate from battery to battery and definitely with the temperature. It is why a % reading cam fluctuate by +/- 5% or more.

ssylca44 Posted at 2019-12-26 11:26
Battery charge level is not an exact science like measuring in the amount of liquid in a vessel, it is only based on voltage which can fluctuate from battery to battery and definitely with the temperature. It is why a % reading cam fluctuate by +/- 5% or more.

Nowadays it is exact science as there is a battery gauge chip(BMS) which measures exact charging/discharging amount and uses calibration parameters to calculate actual percentage based on other factors. It is not based on voltage only. You can read the  TI BQ9003 chip manual how it works. Of course it is only half of story as the exact firmware on this chip is DJI made.

Oto Posted at 5-5 03:04
Nowadays it is exact science as there is a battery gauge chip(BMS) which measures exact charging/discharging amount and uses calibration parameters to calculate actual percentage based on other factors. It is not based on voltage only. You can read the  TI BQ9003 chip manual how it works. Of course it is only half of story as the exact firmware on this chip is DJI made.

Thank you for the update. Cheers