Laptop vendor gave writer some tips to increase the battery life to maximum :

Charge your battery fully and then discharge it till the laptop shuts down by itself. You can do this 2-3 times before your journey. This gives your battery some exercise ( & exercise is always beneficial to health )

Decrease the monitor brightness. This gives you an extra 1 hour battery life

Defragment your hard disk from time to time so it will help your PC’s hard disk lower its power consumption.

Turn off useless programs running behind. Open your task manager to see the programs running

Remove or shut down �not used� externally plugged devices like USB devises, printer, ipod, Wifi etc

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