Summary laptop battery knowledge for beginners


With the popularity of notebook computers, laptop battery problems will be more and more books are a family concern, so he often asked this question on that, and now I put some of my own experience and the technical staff of some experience, take out to share.

First, lithium batteries have memory effect?
Lithium SONY NP-FW50 battery memory effect is very small, almost zero.

Second, if you want to put up the battery is not the case, for how to deal with?
Should be filled up to 90% of the electricity, the plastic wrap on a cool place.

Third, the first charge must be sufficient enough for 12 hours?
This early who do not have the battery control circuit model is applicable to nickel-metal hydride batteries, but for now has a smart charge and discharge control circuit of notebook batteries, it was a joke, when the laptop battery is fully charged, the charge current will be automatically cut off , even if you continue to charge 120 hours, the state would not be any change, in general, even the slowest machine charge, 6 hours is completely filled, the rest of the “charge” is just a waste of their time. Instead, when the new machines should get the first shine of rechargeable battery.

Fourth, how do we know how many times we have sufficient power it?
Give you an example, IBM AC CESS IBM can see there are a number of battery, we can clearly know the first time, charge time and PANASONIC VW-VBG130 battery health. Other books ought to have similar features, we look for.

Fifth, it is not directly to the battery without AC power it?
No. Because the lithium ion inside a long time in a relatively quiescent state if the (so-called relatively static, that is, without electricity or a small amount of battery power of the time. For a long time generally refers to 6 months or so), will completely lose the function of stored energy (whether you use What methods, such as the so-called big release of large charge, even charging more than 12 hours is not easy to use.)

Sixth, how much battery life in the end?
Tell you that the concept of no time limit, the average life of lithium battery (remember, is the life) is a charge of about 400-500 times lower than the number of battery quality have a problem.

Seven, the new battery is to activate
In fact, the activation of the battery work in the factory should have been completed, notebook battery factory a little carried by the natural loss of power is to avoid damaging the battery. Activation of the battery protection circuit should be in no manner, and can be lithium batteries with protection circuit itself, the purpose of the circuit design blocks is to avoid over-charging and discharging the battery, usually when the battery is fully charged, the charging indicator light extinguished the moment, the battery is not charging the state, then this time you then plug the charger to charge the above do not have any meaning. We can see from the status of the battery if the battery is charging Shang, here is a simple way to determine if the battery is charging, the battery is charging when the heat will be emitted when the battery is full after one hour (CANON NB-9L battery charger do not pull the power plug is temporarily down), you go touch the battery, this time you will find that the battery is at room temperature, it is because the battery charge status at this time has not, of course, there will be no heat generated.

Eight, the need for external power supply unplug the battery when
In fact, this depends on when you use an external power supply is not required to charge the battery, rechargeable battery is directly related to the life, in general, lithium battery charge and discharge times are fixed, the charge number to only 500 or so, at most not more than 800 times. Each of our battery to recharge a battery, the corresponding, thus reducing a number of charge cycles. But now many notebook manufacturers are taken into account the vulnerability of cells in increasing protection for the battery technology does not meet certain conditions will not be charged. Even so, when you use the computer for a long time when an external power supply is recommended that you disconnect the battery because the battery temperature is also the bane of one of the laptops in use will have a certain temperature, which is very harmful to the battery. Of course, if you are not sure of your battery, then I suggest you to pull down your battery and then use an external power supply, because not all batteries have a protection circuit. Another is if your computer has a power that can be set by controlling the charging of the software (for example, when electricity is less than 20% or other parameters, you can recharge the battery, but the existence of the software and No I have not yet determined), then of course you can not disconnect the battery.

IX, the correction can improve the battery capacity?
The so-called correction, is when the battery’s actual capacity and the record control circuit capacity not the same as when the NIKON EN-EL14 battery charge and discharge a depth of operation, the control circuit to record, bringing them closer to the actual situation of the battery, which is a manifestation of the true capacity of the battery operation rather than enhance the capacity of the key factors here is the actual capacity of the battery, if the actual capacity of the battery control circuit in the record than the higher capacity, correction can make the battery appear to increase capacity, and if the battery’s actual capacity than the control circuit the capacity to record low, the correction will reduce the capacity of the battery looks, which is why many people are debating the reasons for correction effect, remember that the true correction is to make the battery capacity is shown by the elimination of between battery and control circuit bias, as demonstrated by the increase or decrease capacity, which is the state of the battery itself, rather than determined by your correction. Because the correction is likely the battery discharge when the depth of the injury, but significantly decreased capacity.

Ten, the battery requires periodic calibration, complete charge and discharge once a month?
For the memory effect of a strong nickel-metal hydride battery, which is an essential task, but for lithium batteries, the cycle is too frequent, and Li-ion battery memory effect although not completely eliminated, but has greatly reduced the memory effect, if you use the battery is frequently, then you should discharge the battery to the relatively low (about 10 ~ 15%) and then recharge, but even if the machines are open to the discharge can not (0 ~ 1%) to belong to the lithium batteries have a greater depth of injury discharge , in general, once every 2 months this operation on it. If you rarely use the SONY NP-BN1 battery, as long as once every 3 months so that the operation on it.

I have summarized some of the above is a basic beginners the basics of laptop, and I was a beginner, if there was something wrong with welcome correction, if your interest in this very dare and I welcome you to exchange ideas.

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