How to reset the "Maximum battery capacity" to 100% after replacing battery cells

[orybarfly]

Hello all,
I have replaced the LiPo cells of two of my Anafi batteries. The previous cells were swollen and the Maximum battery capacity in the Freeflight app was showing 52% and 34% respectively. Needless to say that the flight time was less than 5 minutes and the voltage was dropping rapidly on both of them. I have found new cells from the chinese market. The batteries now hold their charge but the flight time is still under 5 minutes because the percentage of the battery drops in the same way like with the previous elements. The drone starts the auto land when the percentage drops below 10%, even though the voltage now is above 7400mV and it shows no sudden fluctuations (which means that the cells are in good condition)
I have tried to hard reset the batteries by pressing the button for more than 15 sec without success.
Is there a way to reset the “Maximum battery capacity” back to 100% by some way?

[Axelm]

Hi @orybarfly,

Unfortunately, it’s not possible to modify the firmware of the battery and reset the maximum battery capacity value. We strongly advise against any hardware modification of the battery.

Regards,
Axel

[orybarfly]

Hi @Axelm ,
Thank you for the quick reply. I really don’t want to make any modifications to the firmware of the battery or the battery electronics as far as the hardware is concerned. I’m just looking for a procedure to restore the maximum battery capacity reported by the battery back to 100%, since the cells are new now.
Maybe there is a way to reset it to factory defaults that would include the “Maximum battery capacity” as well.
Kind regards

[anafifan]

So fresh batteries and no improvement. As the batteries are no longer made by Parrot. I am shocked to learn this, as I may also want to replace the cells on my regular anafi in the future when my flight time is reduced as well.

[orybarfly]

It looks like there is a solution to the problem. One has to fully charge the battery with the new cells, fly the drone down to auto-land and keep it in working state until the drone shuts off by itself. Fully charge the battery again and do the same procedure one more time. This way, a battery that was showing 34% maximum battery capacity, it is showing now 85% and I am getting around 18 minutes of flight time!