2011年1月7日星期五

Laptop battery charging and use the correct

Laptop battery charging and use the correct


Got a new battery, many users approach is prompted by businesses for use in the first three rechargeable lithium battery for 12 hours or more. There are many arguments on this line, in fact, most of the batteries for the laptop is not necessary. Why? Businesses say this is the activity in order to fully activate the battery, fully awaken a new battery.


For this reason it sounds very full and credible, but we have not thought about this problem. If, laptop battery manufacturers have not yet been fully activated to appearances, then it can be said that only a semi-finished products. Can not require each user to activate the battery master the skills, in reality, impossible. Thus, in the battery factory has been a manufacturer of fully activated.


Then call the user charge the battery for 12 hours is conducive to the use of it? Here I give a negative answer, the current laptop battery has improved power management circuits, and charge management system, when the battery reaches saturation, the control circuit automatically switches to short-circuit state, so the time just after the waste of time. How to activate the activity of the battery? In fact, the activation of the battery manufacturer for overload protection in case of no longer charging and discharging of the battery. Therefore, the first three charge 12 hours is unnecessary.


In the second, many users use the battery very confused, what should or should not wait until the battery is completely discharged before charging. This problem is actually the answer should be like this, if you can do is certainly a good thing, but only if you took the trouble. Of course, I mentioned here does not mean totally over-discharge, excessive discharge is absolutely proved harmful to the battery, it will shorten the battery life.


So when the laptop battery low prompt when you can charge a timely manner. Some businesses have repeatedly declared their lithium batteries no memory effect, this practice is extremely irresponsible. So when your battery power when there are more, or do not charge as well, because the memory effect does exist.


Third, for how long should the battery need to do, it is recommended into the 40-50% of the electricity, place the shade in the low temperature, the following parameters can explain this problem.


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)


(Percentage of initial value at the time relative to the percentage of saturation),


Of course, take the battery out every month with the best time, the battery can ensure a good state of preservation, but not so for the loss of damage to the battery power completely.


Fourth, the use of laptop computers in the description "should be used one month after the full charge and discharge time" approach is necessary. Notebook computer lithium-ion batteries are generally with management chip and charge control chips. Management chip in which a series of registers, there is capacity, temperature, ID, charge status, and discharge times and other values. These values are in use will gradually change.


Personally, I think, for use in notebook computers in the "use of one month after the full charge-discharge should be a" major role approach is to fix these registers should be properly value, making the battery charge control and battery nominal capacity consistent the actual situation. So this kind of work or can not be omitted, after all, expensive laptop or squeamish of the nobility.




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