What Is Really A 9V Battery Made Up Of?
It does not make a difference if it is dead or not. It should take max 3-6 hours to charge to full power even if you still have battery lead. There is a big difference in how long it will last. There is a standby mode when you aren't using it which most phones last up to a few days 3 sloth. But if you use it a lot battery will die a lot faster. Whe