How Long Does One Percent Battery Last. After a full charge I tend to get about 1-2 hours 3 hours tops if im only emailing. You can calculate your laptop battery life by dividing the battery capacity Watt-hours or Whr from the power consumption of your laptop watts.
The average car battery life is from three to five years. Battery capacity is typically measured in Amp-hours Ah or milliamp-hours mAh although Watt-hours Wh is. Its completely depends upon your usage and the battery condition.
Basically if you charged your laptop to 85 to 90 instead of to 100 you could improve your battery lifespan by 6 months to a year.
In lithium-ion batteries which power devices such as cell phones the self-discharge rate is low and the battery can be recharged for up to four years before it is depleted. For most laptops there is an average of 1 hour of run time. Using the CDDVD player streaming media and the screen brightness use up the most battery. Depending on how you use the laptop its battery capacity can range from 400 to 800 recharges assuming you use it occasionally.
