Discharge the battery before each charge is not necessary, but also harmful.

Jan. 24, 2011 - PRLog -- it is recommended to use about 10% when the battery can be charged when the. Of course, when the battery power is still more than 30% of the best to be charged, because the memory effect does exist.  

Third, insert the AC when the battery should win, so as to prevent the repeated charge and discharge it?
My advice to you is: No! Of course, you can take the natural discharge of lithium-ion battery to refute me that the natural discharge of the battery, if there is power there will be access to the case of repeated charge and discharge, reducing battery life. And I give you "instead of" this answers the following reasons:

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1. Now the laptop control circuit is designed with this feature: that when the battery reaches 90% (such as HP's most models) or 95% will be charged to achieve this through natural discharge capacity of a time for 2 weeks month, when the battery idle for about a month to complete in order to maintain the battery charge and discharge capacity, this time you should be concerned about is the battery should get some exercise instead of being idle again after the charge.
2. Even if the battery "unfortunate" was once again charged, bringing the loss will not be long without the battery than the decrease in power consumption caused by a large number.
3. Your data than you or even your laptop batteries are much more valuable, a sudden power failure has not only hurt your laptop, you can not restore data that is too late for regrets.

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Fourth, long-term storage battery needs to be full of electricity?
Read the following to clear the table: (percentage of initial value at the time relative to the percentage of saturation)
Storage temperature of 40% state of charge of 100% state of charge
0 degrees 98% (one year later) 94% (one year later)
25 degrees 96% (one year later) 80% (one year later)
40 degrees 85% (one year later) 65% (one year later)
60 degrees 75% (one year later) 60% (3 months later)

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