Hp Pavilion Dv4-2161Nr Twelve.1-Inch Laptop (Intel Core I3-330M, 4Gb Ddr3 Ram)
It does not make a difference if it is dead or never ever. It should take max 3-6 hours to charge to full power even if you still have battery allowed. There is a big difference in how long it will end. There is a standby mode when you aren't using it which most phones last up to a few days 3 utmost. But if you use it a lot the car battery will die