Walt Mossberg: New laptops last all day

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The Wall Street Journal article discusses the power testing of two new laptops equipped with Intel's 4th generation core processors, confirming that they can indeed last all day on a single charge. Key design strategies to enhance battery life include limiting disk drive access through memory caching, utilizing SSDs instead of traditional hard drives, controlling LCD brightness, disabling unused adapters like Wi-Fi, and dynamically adjusting CPU performance based on demand. Additional resources highlight the impact of wireless components on battery consumption, providing insights into how different laptop functions affect overall power usage. Overall, advancements in technology and design are contributing to significant improvements in laptop battery longevity.
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Limit disk drive access by all programs via caching to memory.

Eliminate the disk drive completely and use SSD memory.

Control LCD display brightness to minimum acceptable.

Turn off adapters like wifi if not in use.

Reduce CPU Hertz to acceptable minimum, increase as needed for higher computational requirement (ie graphics)

http://www.notebookreview.com/default.asp?newsID=3597&article=wireless+and+battery+power

http://www.itworld.com/hardware/358683/how-can-intel-cut-notebook-power-consumption-half
 
I was getting over 10 hours out of my 2-core, 4 GB laptop when I bought it new in 2009, so I am hardly surprised. Yes, I selected one that was expected to last long, but it also had a normal 500 GB HDD, as it was to be used for copying pictures from my camera in the woods. And it definitely worked as expected.
 
That link,

http://www.notebookreview.com/defaul...+battery+power

Laptop Battery Life: How Wireless Affects Power Consumption

is interesting...

I don't use a laptop, but I have wondered how various component functions consume battery power...the graphs there give a nice quick overview...
 
That link,

http://www.notebookreview.com/defaul...+battery+power

Laptop Battery Life: How Wireless Affects Power Consumption

is interesting...

I don't use a laptop, but I have wondered how various component functions consume battery power...the graphs there give a nice overview...
 
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