Another way to make your laptop battery last longer is to turn off unnecessary connections. If you don’t need Wi-Fi or Bluetooth at any given moment, why leave them on and waste energy unnecessarily?
To disable Wi-Fi and Bluetooth on Windows 10, for example, you can click on the balloon icon located in the notification area (bottom right) and press the Airplane mode button to disable all connections in one one shot. If you want, you can also disable just one of the two connections by pressing the Network or Bluetooth button.