Help! In the middle of replacing my screen, what is this piece?

[Smoked_tails]

Hello got a first timer here ( with replacing a screen atleast) I was taking out the speaker assembly i believe, it goes close to somewhere around there.. any help would be much appreciated!

[sladester]

maybe an ifixit teardown could help?

[PatrickGSR94]

There ya go bud, battery connector:

http://guide-images.ifixit.net/igi/i...eKlbacnen.huge

See Step 6:
iPhone 4 Teardown - iFixit