Recently, a friend asked me,That's why it's power have shown that only 90% after go outside and degree of vacation to come back and it was useless period of time? I remember it was filled previous, what are the reasons that in the end it?

      Is it a normal phenomenon ? Due to environmental humidity and the environmental inpact of the non-absolute laptop battery consumption of natural phenomena exist , Depending on both quality and grade of old and new they will be drop about1% 3-4 days.So long as one is not a significant decline is a normal phenomenon.