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Laptop battery

My dell inspiron tm6400 battery used to last 3 hrs and all of a sudden it is only lasting about 1.5 hrs what can cause this

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Answer #1

Laptop batteries experience what is called “memory problems” meaning that if they are not 100% discharged and then 100% recharged after, they will start to “remember” to what capacity they are being recharged at and will loose a portion of their energy capacity. Scientists do not even know what causes this.

Answer #2

if you go to control panel, you can change the settings on your computer to lower the battery use & make it last longer, its just like power saver on a cell phone.

Answer #3

I dont think there’s much you can do… batteries get worn out and they dont work as long… at least that has been my experience…

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