Use rechargeable batteries for notebook computers is relatively one of the advantages the desktop, it can greatly facilitate the environment in a variety of laptop use. Introduced the first battery is nickel-cadmium battery (NiCd), but this battery has a "memory effect", each must be discharged before charging, very easy to use, soon to be nickel-metal hydride batteries (NiMH) replaced, NiMH not only did not "memory effect", but also can make more per unit weight of 10% of the electricity. The most commonly used battery is a lithium-ion battery (Li-Ion), it is also no "memory effect", compared with NiMH, get more weight per unit of electricity, the price twice as high than the NiMH. In the same weight, the three battery is 1:1.2:1.9 ratio.
Batteries currently used in notebook computers are three main points: 1. Nickel-cadmium batteries, 2. Ni-MH battery, 3. Lithium battery; they are generally expressed as: Ni-Cd NI-CD, Ni-MH NI-MH, lithium LI.
In the purchase or replacement notebook battery when, for many users, "batteries" may be unfamiliar. Outset, batteries and battery are two concepts. A battery is composed of several slightly larger than the thumb, cylindrical, about 7,8 cm, the voltage is 3.6v small units.They are batteries, like a small battery, after a series combination, that is, we see the battery. Then talk about how to determine if the battery is a few core:
One way: Disconnect the battery to see him the number of contacts, there are a few of the tens of cores. But this is the "minister" approach. Let's look at the "Cao Chong" is how, "said the image": a look at how much your battery nominal v, such 14.4v, then divide by 3.6 to get 4, then the proof is four cells in series together. Then see the capacity of the battery block, such 3800mAh, it is mentioned above that has two batteries in series, because the small battery capacity is 1500-2000mAh, or even more, in order to achieve two 3800mAh. According to these two judgments, then the cell is 4 × 2 = 8 cores.
Composition of laptop battery
Laptop battery by the shell, circuit boards and batteries composed of belonging lithium ion battery. Usually they say, batteries means the number of batteries within the battery, mAh refers to the laptop battery capacity.
Mainly by the protection circuit board (or the secondary protection circuit), and the volume indicator circuit composed of two parts, notebook battery charge and discharge and safety management.
Laptop battery standby time is determined mainly by the mAh value. Under normal circumstances, the more batteries, mAh greater the longer standby time. The life of laptop battery charge and discharge times measured by the quality of qualified products generally 500-600 times.Therefore, the effective use of laptop battery within a period of two years, expired battery will be aging, standby time dropped dramatically affect the mobility of the laptop.
Laptop battery tips
In fact, how to make good use of laptop battery, how to extend their use of time and the use of life and other issues, no doubt troubled by the majority of laptop users in the heart of a problem, the use of laptop batteries There are many methods and techniques, which requires us to usually use more learning and application.
(A) fast into hibernation
Temporarily not using the computer, in order to conserve battery power, we can set the power management program, so that the system goes to sleep after a period of time, but shorter or longer will have to wait a few minutes and there is no way to make laptop computer system immediately enter the sleep state?
The notebook into hibernation system of a quick and easy way is to simply turn off the display. Press display just little things, you can make the laptop into hibernation immediately and effectively conserve battery power. When you need to use it again, simply open the display, the system will automatically return to the state before the operation.
(Two) screen saving mode
TFT screen is the largest notebook computer power components, in order to reduce the use of the battery when the power it consumes, notebook computer manufacturers have devised ingenious schemes, but in general are based on the lower screen brightness, even off the screen method.
In the part of the notebook computer's power management settings you can customize screen brightness, most laptops can be specific shortcut keys adjust screen brightness, generally 6 to 8 brightness adjustment.
(Three) for saving settings
Desktop using alternating current, most people's energy-saving features of the computer may not be very great importance, but for the need to use batteries to power notebook computers, the use of energy-saving features should be taken seriously. How to design computer hardware more energy efficient, it is not a user problem to be solved. The user can do is set the computer to effectively use energy-saving options.
There are two energy-saving settings require the user to adjust: First, the computer's BIOS setup program on the energy saving mode settings; most important is in the operating system has many energy-saving settings and operation. In the practical implementation of computer systems, Windows systems should take precedence over energy-saving settings in the CMOS settings.
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