How much power remaining in full charged Laptop Battery

My two friends send me two screenshot took on their laptop some days ago. I installed LinuxMint 13 (Maya) on their laptop. Both of them are using Toshiba Satellite c100D laptop.
One of them shows that the fully charged battery has 4 hours 32 minutes of power to full discharge.
4 hours 32 minutes of battery power remaining at 100%
4 hours 32 minutes of battery power remaining at 100%

Another screenshot shows that 99% charged laptop battery has 3 hours 37 minutes of power.
Laptop battery has 3 hours 35 minutes remaining at 99.4 percent
Laptop battery has 3 hours 35 minutes remaining at 99.4 percent
I do not know the actual reason of this kind of different message in same type laptop and same type operating system.

2 comments:

  1. I guess, it is depend on "How old is your laptop?", generally laptop with more than 2 years gives very less battery backup. My laptop is 5-6 year old and it gives only 1 hour of battery back up, initially it was giving 3 hour. So it is not about the same OS or same type of laptop. It is also depend on the number of application your are running and brightness of the screen, the less application you are running with less brightness of the screen the more battery back up you will get.
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  2. That's a nice widget.. Thank you.
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