is battery connecting or not ?

well when i put my battery in my bb 8300 it turns on but comes up with the screen with the battery on and a red line ? dose this mean my battery is connecting to the phone and is just not charged ? because if it was the battery that didnt work wouldnt it just not turn on at all ? same if it was a problem with the phone . ? :confused:

sound like a dead battery I would try a different battery Do you know anyone with the same phone that works , try their battery in your phone and if it works then you will need to get a new battery
Good luck!!!!