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Windows 7: Should I remove my battery when the AC adapter is plugged in?

03 Sep 2011   #1

Windows 7 Ultimate x86
Should I remove my battery when the AC adapter is plugged in?

Is it okay to use my laptop with AC adapter plugged or will it kill the battery life due to overcharging? I have Dell 6-Cell Lithium battery.

My System SpecsSystem Spec
03 Sep 2011   #2

Windows 7 Pro x64 SP1 and Mac OS X 10.8.3

It will not kill the battery. The way a Lithium Battery breaks down is one cell goes bad and that causes the whole battery to go bad.
My System SpecsSystem Spec
03 Sep 2011   #3


I tend to leave my laptop on A/C 24/7 so I remove the battery.

Tests/anecdotal evidence suggests that there is still a higher risk of degradation when a battery is left in.

Conversely, you can find equal amounts of tests/anecdotal evidence to suggest otherwise.
My System SpecsSystem Spec

05 Sep 2011   #4

Windows 7 Ultimate x86

My System SpecsSystem Spec
05 Sep 2011   #5

Windows 7 Ultimate SP1 64-Bit

Best advice I've seen is to run the battery down now and then and recharge it before it totally discharges.

That said, my wife's laptop battery went to the recharger in the sky so she's used the mains adapter ever since.

It means the laptop isn't so portable, but she refused to pay for another battery as the original one lasted less than 2 years.
My System SpecsSystem Spec

 Should I remove my battery when the AC adapter is plugged in?

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