Looks like the battery hasn't died to the point of ceasing to work at all. So you might have a easier time replacing the dead cells. For completely dead batteries, I hear you have to clear the internal eeprom data of the battery controller as the battery will tell the computer it's dead even though you replaced the cells if you didn't reset it.
But 1 minute sounds like the battery hasn't given up yet.
But 1 minute sounds like the battery hasn't given up yet.