When and how should I discharge my laptop battery?
If your laptop uses a Li-ion battery, do not discharge your laptops battery. Doing any of the steps below may decrease the battery's life and discharging is unnecessary for these batteries.
How do I discharge my laptop battery?
Allow the laptop computer battery to drain completely. To do this, 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 BIOS setup
Some laptop manufactures include a battery refresh option through the BIOS setup.
Old laptop battery deep discharge
Older batteries can be discharged using a deep discharge debug routine found on our debug page.