In my rush to firmware update my dji stuff last month, I never noticed if there was a firmware download for the batteries, did anyone? I dont remember seeing it popup.
Does it download to each battery individually or to the m5p only?
You do it thru the Assistant software on your PC. Go to the DJI site and get the appropriate assistant, I think assistant 2 and then plug the drone into the pc it should show needed updates, if not simply find the update and install.
Each battery needs to be updated. Turn off RC2 and device, put battery in device, turn on RC2 then update firmware; repeat for each battery. Doing this for the A3S and RC2 at this time, Next I'll do it for the RC 2 Pro and Mavic 4 Pro (assuming it also needs it); both have 5 batteries.
Update: Mavic 4 Pro updates needed and in progress. All done now.
Thanks to Flyin&Smilin for being vigilant and makes this known. Have no idea what the battery firmware update does but expect it does something better now.