u/Dangerous-Purple2193

I believe my di2 charger died. I have the type that plugs into the bar end cap.
I borrowed a charger but it’s the type for a derailleur. I have looked for the little trap door for the charging port. Do my derailleurs not accept this?

Anyone do this and how did you resolve it?

Was trying to change the battery and salt/sweat made that a little difficult. I used pliers to try and help which I read afterwards to not use

So now the whole battery case just spins and I can’t get the cover back on either.