Is it OK to Leave Your Laptop Plugged in All the Time? — SuperTechman

  • A battery cannot be overcharged. There’s no danger of overcharging a battery if you leave it plugged in all the time. As soon as it hits 100 percent it will cease charging and won’t start again until the voltage falls below a certain level.
  • Fully discharging a battery will damage it. Allowing the battery to become completely empty for an extended period can put it into a deep discharge state. This can be fatal-you might never be able to charge it again. (You can try these methods to jump start a dead laptop battery.)

The real reasons why all batteries wear down over time

  • Fully discharging — If you let your laptop fully discharge for an extended period of time then it can cause permanent damage.
  • Charge/discharge cycles. Every battery has a finite number of times it can be charged and discharged.
  • Voltage level. The higher the charge level (measured in volts per cell), the shorter the battery’s life.
  • High temperature, over 30 degrees celsius. This can cause irreparable damage.

Fully Discharging

Charge/Discharge Cycle & Voltage Levels

Heat

But Should I Leave It Plugged In or Not?

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SuperTechman

SuperTechman

Unique blog that is aimed to provide I.T professionals Systems/Network administrators technical solutions, insights & knowledge on a wide variety of topics.