Now that I had to send my C23 camera to service due to the gimbal shake after the update, I had two fully charged batteries and no reason to fly at all I decided to acquire the DY5 charger to be able to put my batteries into storage mode.
Charging is fast and it takes about an hour to fully charge two batteries from 50%, and you can visually monitor the cell balance.
On the other hand, putting batteries onto storage mode is as easy as charging the just place the batteries in the charger and hold the tiny button for two seconds and the charger begins draining the batteries until each cell hit 3.85V. It took about 4 hours to discharge two fully charged batteries.
Charging is fast and it takes about an hour to fully charge two batteries from 50%, and you can visually monitor the cell balance.

On the other hand, putting batteries onto storage mode is as easy as charging the just place the batteries in the charger and hold the tiny button for two seconds and the charger begins draining the batteries until each cell hit 3.85V. It took about 4 hours to discharge two fully charged batteries.