Views 1: Remove the battery when using external power supply.
View 2: Don’t need to remove the battery when using external power supply.
Survey: Most students remove the battery in the use of external power supply, only a few students stay the battery plugged on the laptop when using external power supply , which a small number of students are used in a number of international brand-name brand.

Proposed method: In fact, whether the battery should be removed or not, it’s depend on whether the battery is charging when in the use of external power supply. We should know that the life of lithium batteries is directly related to the times of battery charge and discharge, in general set the number of charging and discharging times is fixed, number of charge cycles only 400-800 times. The first perspective is nothing more than fear of the use of power, the battery will be recharged, not only increase the number of charge cycles and will cause over-charging. The second view is that the battery is full power on the computer, in the use of external power supplies will not recharge. In fact, both views have their right side, but also have the wrong side. Because it is only the views expressed by individual people, not very comprehensive, after my investigation, many notebook manufacturers have to take into account the vulnerability of the battery and the product is added to the protection of the battery technology, and therefore the corresponding different brand notebook batteries charge of different protection technologies such as some large companies in this area is pretty good, such as: IBM, HP, Toshiba, Compaq, etc.. Which is considered the most thoughtful of IBM, IBM laptop battery discharge can detect the situation, ThinkPad notebook battery power will be automatically recharged only when less than 95% . This can play a very good protective effect of the battery, and now there are quite a number of other manufacturers to follow. Therefore, the battery like this, you do not need to use when drawing down, because only when the power is lower than 95% of the time it will charge. Nevertheless, battery is suggested to be removed if your laptop is being used for a long time, because the heat generated would cause some harm to the battery. Each access to external power supply to the battery charge is equivalent to one, although only a small charge will be the time. It is proposed that all the time in the use of machinery in accordance with their own circumstances, notebook manual check, deside whether the battery should be removed when in the use of an external power supply.
