
How battery life is worked outīattery life is worked out by fully charging a laptop then leaving it running until the battery is flat.


Battery life is much better on modern laptops as most will get you through the working day, while some provide round-the-clock power and performance. It’s one of the most important considerations you’ll make when choosing a laptop, alongside screen size and processor. Laptop battery life is the time your laptop takes to run out of power when it is not plugged into an electricity socket.
