i just noticed something on that 4 battery charger you can pull up that anti slip rubber at the bottom an there is a micro usb port i tried out if i could charge with that which would be so nice but
my result is that the led on the charger is orange for 5 to 10 seconds and than turnes red while with the normal charger it is orange when no battery is pluged in and instantly turnes flashing green when i want to charge a battery.


does anyone know what that port is for? not that it would be important but im still interestet. Maybe it is for some sort of software on the charger as it finds the most charged battery itselve and starts th charge that first.

cheers
Michael

Hi, Thanks for your inquiry. May we have the screenshot of this port so that we could take a look for you? Please hit "Reply" for us to be notified. Thank you for the support.

I believe it's for the hub's firmware update port.

Its for firmware update, its documented in the manual. The Mavic 1 had a similar hub and as far as I know they never issued an update.