iPod 4 Batt Term Solder Pad Gone Pics – lot of problems ! its some previous iphone pone issue solution

Hi I have a iPod 4th Gen that the middle battery terminal solder pad has came away – I have tried to scrape back and solder onto the copper however when charger is plugged in shows the symbol as if the battery is full so is not charging battery – does anyone know where i can jump this terminal in order to get it charging correctly