How can I revive dead cell phone batteries?
You didn't provide a great deal of information. Are you saying that the battery has simply run down? If so, then all you have to do is re-charge it by plugging the phone into your charger and then plugging the charger into an electrical outlet until the message on the screen says that the battery is fully charged. If you have done this and still the battery seems to be dead, you probably need a new battery.