After a new battery is installed for your laptop, it should be calibrated as soon as possible. This helps your laptop get an accurate reading on the battery’s state of charge.
Note that you do not have to calibrate your new battery immediately. If you forget to do so, you can do it later without any harm to your computer. But it is recommended to do this as soon as possible.
Without calibration, the battery percentage reading will be incorrect, and your laptop may behave erratically. For example, your laptop may shut down suddenly even though battery status shows that it has plenty of charge left, or the laptop may work for hours when the battery status shows it has low charge.
How to calibrate your new battery
- Charge your laptop to 100%, and keep it charged for 2 more hours.
- Unplug the power adaptor from your laptop and use it normally to drain the new battery to 0%.
- Reconnect the power adaptor and charge your laptop uninterrupted to 100%.