Batteries drain quickly.

[DavidBlezard]

I have not used my mavic for about a year. Drone and batteries were stored in my house at normal living space temp 70-75 F.

this month I charged all the batteries and controller. Went flying. The batteries seem to only last about 10 minutes.
Is there a way to renew/refresh the batteries to get back to the 25-35 minutes they used to last?

 

[Meta4]

I have not used my mavic for about a year. Drone and batteries were stored in my house at normal living space temp 70-75 F.

this month I charged all the batteries and controller. Went flying. The batteries seem to only last about 10 minutes.
Is there a way to renew/refresh the batteries to get back to the 25-35 minutes they used to last?

If you post the recorded flight data from one of those flights, it might have some information about the battery's status.

 

[sawman]

You might try putting them through a couple of charge/discharge cycles (better if done with a device specifically for the task). It may get better, but the internal chemistry won't ever get back to new, or like new condition. That just the nature of lithium batteries.
If planning to use your drone regularly, get new batteries and send the old ones to sit beside all the EV batteries at the landfill.