Could have messed up a pack, not sure?

[PapaGeno21]

Ok guys here is my situation. I used a lipo, its my Protek 5S 4000MAH pack. I think I accidentally used it twice, so I go to plug it into the lST today and its saying low voltage. OK so thats fine whatever.

Plug it into my charger and my balancing tap from the pack is not working.

Now the packs got 15.4V in it, so im assuming thats like just above 3V per cell unless one cell dropped off, I dont know because the balance plug dont work.

(The charger is fine, its the packs plug that dont work).


Now if I go to charge it unbalanced it asks if its a 4S and its not so I cant hit enter? I dont kno if I should charge it without the blaancer or what?

FWIW im using a Hyperion Duo.