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You don't have to pull the battery
Authored by: tbolioli on Sep 16, '09 09:34:52AM

You don't have to pull the battery, just don't let it discharge and it won't charge when plugged in. It is the combination of use and charging that trips the 75W limit. ie; 45 watts for the laptop and 40 watts for charging. If you are not charging, then that 40 watts is not used. Also, there is a curve for the power charging a battery. The power needed to charge a deeply discharged battery (20% left) is not the same as the power needed to charge a lightly discharged battery (90% left). So it may need 40 watts when @ 20%-80%, but after 80% it goes down to 10 watts @ 90% and even less as you make it to 100%.

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