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Living Room / Re: better battery life out of a laptop
« on: September 19, 2016, 09:19 PM »
2 points to consider-
1- Re IainB's post - the cap from Hard Disk Sentinel
Required Power for spinup -
the value shown is the Current [milliAmps] the actual Power, for a 5 Volt laptop Hard disk, would be 4.7 Watts.
-- [ Power is Voltage X Current ] -- 940 mA = 0.94 A so 0.94 A x 5 V = 4.7 W
2- Re the posts about setting Background/Foreground colours to Dark/Light would only apply to LED screens,
as LCD screens use a fluorescent or LED backlight which would use the same Power, depending on brightness.
There is a difference between LED Screens & LED Backlit LCD screens
1- Re IainB's post - the cap from Hard Disk Sentinel
Required Power for spinup -
the value shown is the Current [milliAmps] the actual Power, for a 5 Volt laptop Hard disk, would be 4.7 Watts.
-- [ Power is Voltage X Current ] -- 940 mA = 0.94 A so 0.94 A x 5 V = 4.7 W
2- Re the posts about setting Background/Foreground colours to Dark/Light would only apply to LED screens,
as LCD screens use a fluorescent or LED backlight which would use the same Power, depending on brightness.
There is a difference between LED Screens & LED Backlit LCD screens