@fasteddywilson, edmund, Normally the battery door assy would be replaced as it will have the contacts molded into it I believe. Below is a guide that will show how to disassemble camera to access battery door hinge pin to enable changing of battery door. Also a couple links to replacement battery door assy. which you can also do a search on for better pricing perhaps. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.

Canon PowerShot A620 Camera Housing Replacement

http://www.procamerarepair.com/CANON-POW...

http://www.ebay.com/itm/GENUINE-CANON-A6...