Broken pin in battery connector on logic board

I wonder if anyone can help me with this please ? After having some difficulty in getting a replacement battery for my Macbook Pro to fit in the internal jack on the motherboard, I found that one of the pins was bent (the 2nd one from the left as you look at in to it from the battery side), and later broke off when I tried to straighten it with a plastic spudger. My MBP still recognises and charges the battery though, so was wondering if anyone can tell me what this PIN was for, and if it’s ok to keep running my laptop with it missing, or if it will affect battery performance ? Any advice would be gratefully appreciated.