A lot of the tips are similar to those for improving smartphone battery life, so you can use the same techniques.
How to improve laptop battery life
1. Dim the screen
By far the biggest power drain on most laptops is the screen. Or, to be more specific, the screen’s backlight. This is what enables you to see the colours on an LCD screen, and some older laptops have power-sapping fluorescent backlights. Modern laptops have LED backlights, but even these use a fair amount of juice.
Dimming the screen brightness can add 30 minutes or more to your battery life. Virtually all laptops have keyboard shortcuts to adjust the brightness. Typically, you’ll hold the Fn key and press one of the function keys in the top row, or one of the cursor keys labelled with a sun symbol.
If not, hold the Windows key and press X. This will open up the Mobility Center where you can change the brightness, and this works in all versions of Windows.
2. Change the power settings
By default, your laptop might be set to Windows’ ‘Balanced’ setting rather than Power Saver. In the Control Panel search for Power Options and check which Power Plan is selected. Don't forget that Windows uses different power and performance settings depending on whether it is running on mains or battery power.
You should find a battery saver option, and it's simply a case of selecting it and closing the window. If not, click on 'Show additional plans'. If there's still nothing, you can customise a power plan by clicking Change plan settings next to a profile Asus Customer Service
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