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This question already has an answer here:

I was wondering how often should I charge my laptop?

I have heard that using my charger plugged in will cause the battery to heat up and reduces battery life. Thus I've decided to stick to using my battery, since it is here for a reason. (my battery is built-in, non-removable).

However, I am not sure when I should charge my laptop, and do I charge it to 100%?

Should I charge my laptop only when the battery dies out (0%) or is there a reasonable point I can let it run down to? (10% or something?)

My Battery: 47WHr battery; 6-Cell Li-Polymer (built-in)

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marked as duplicate by Sathya Mar 9 '13 at 9:02

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Also look at charging Laptop Batteries – Sathya Mar 9 '13 at 9:07

Your first question has already been asked and answered here.

About the second question, integrated graphics do have terrible performance and don't support features like antialiasing and anisotropic filtering. Your laptop probably has dual graphics: it has second, more powerful GPU (from NVIDIA or AMD) that's turned on only for games. Integrated graphics will drain the battery slower, which is why it's the default one.

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