1. Check the power cable
Make sure the power cable is securely connected to your laptop and the wall outlet.

2. Check power settings
Ensure that your laptop is not in power-saving mode, and that all ports are active.

3. Calibrate the battery
Try running your laptop’s calibration command or removing and re-installing the battery.

4. Replace the battery
If the above steps do not work, replacing the battery is usually the best solution.