1. Lower your laptop screen brightness to about 70%. Doing this will save you up to 10 watts of electricity per hour and prevent the laptop battery from getting discharged faster.
2. If you're buying a new laptop, make sure it has enough RAM. That's because when your system RAM is full, programs access the Virtual memory on your hard disk. This consumes more battery power than directly accessing RAM.
3. Ventilate your laptop and keep it cool at all times. High temperatures are known to kill your laptop battery faster.
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