About 2month ago
M600 suddenly fall down during flight.
Dji analyzed flight log and said no3. motor has different power with other motors.
So M600 sent to HONGKONG for repair.
The warranty was expired so i paid about $400 for repair

and this was first test since repair.
Batteries looks not normal
In the beginning, there are no big difference each batteries.
but gap grows over time.

Is it OK to use?? or it's danger??

Hi there, please charge the batteries fully and insert into the drone to see whether there is any reminder in APP. Generally, a warning message will pop up if the battery went wrong, no worries.