Hey,
Seeing if I can get some guidance on what I should do with a swollen battery, I did not drop/crash this battery, I took it out of the case after being stored for a little over 2 weeks, charged the battery because it seemed to have discharge, but I am almost positive I left the battery already fully discharged before leaving it. Any suggestions on what I should do? Return it? can I even ship something like this? possibly refund or replacement?

Thanks,

Jonathon

Depends on how old it is - warranty on batteries is 6 months.
If it is badly swollen then it's dangerous and a hazard - best you get rid of it.

A battery should not be left fully charged for as long as 2 weeks. The battery firmware has a default setting to discharge after 10 days. It is recommended by DJI that batteries be discharged to 50% if they are to be placed in store. Leaving a battery fully discharged is also not a good idea.

There is little point trying to ship the battery even if you could find a courier who would handle it especially if it is damaged. As Farnk666, DJI only give a 6 month warranty for batteries.

Jonathon, when did you purchase the battery?  You said you fully discharged the battery before storing? That could be bad for the battery. We recommend to store the battery discharged  to the 50%