A:Answer I can easily take it out for entire day without bringing the charger. Several times, I've seen it go down by about 25% after 3 hours, so yeah, it's awesome. My usage involves Microsoft Office (relatively light on the processor), Google Docs (heavier on the processor), random internet browsing, YouTube and Netflix streaming, and browser games (heavy on the Wi-Fi usage) with a screen brightness of about 10% (I haven't tested its battery at brighter settings for long enough to attest to that, sorry).