If the connector is defective on the phone the only things you can do is place the battery in another BB ( same model) todo the charging or look for a charger base for the battery. They allow the battery to be charged in an adapter outside of the phone.
do an internet search for "external battery chargers" You may also find one in a local store.
One I found
http://www.mobihand.com/productacces...attery-Charger