Left Airpod Keeps Disconecting after 40-60 seconds

Every time I use the airpods left one only lasts from 30 to 60 seconds connected. I just need to put it back in the case for a second and will last again the same amount of time.

I´ve heard that it might be a battery issue but I´ve never used just one airpod and dont understand how the right one can last up to 2 hours now and left drain in just a minute.

Tried nearly everything. Seems like a common issue among airpods version 1 but I cant find someone that has actually solve the issue.

Any advise ?