This is not the best approach but it worked for me. I simply taped it with electrical tape. I put a metal washer on top of where the connector is. I put another piece of electrical tape on top of the washer. I pressed the lid on firmly so it applied pressure down on the connector. Works fine. Again, this is not a real tech solution, just something to do if you absolutly need your phone for a day.
Answer to: Is there a way to fix the battery connector?