When and how should I discharge my laptop battery?

Updated: 05/05/2017 by Computer Hope

Caution: If your laptop is using a Li-ion battery do not discharge your laptops battery. Doing any of the steps below may decrease the batteries life and discharging is not needed on these batteries.

How do I discharge my laptop battery?

Laptop batteryAllow the laptop computer battery to drain completely. To do this, you either disable all power management utilities or use the computer until it powers itself down. Once drained, recharge the battery to 100%. Doing so every few months helps extend the life of your portable computer battery.

Refresh battery though CMOS setup

Some laptop manufactures also include a battery refresh through the CMOS setup.

Old laptop battery deep discharge

Older batteries can by discharged by using a deep discharge debug routine found on our debug page.

Additional information