combattery84

Adapter is how the heat generated
Regardless of any power supply has a certain internal resistance, so when the power supply output current when the pressure drop in internally generated, equal to the output current multiplied by the power supply internal resistance. Drop will result in two things, one is to produce heat, is equal to the square of the output current multiplied by resistance, so the power will be hot, and the other is the output voltage to the internal nominal voltage minus the voltage drop, causing the output voltage decreases.
The design is usually considered after the completion of heat dissipation, generally limits a current value, when the output current reaches this value, the output voltage is reduced to 95% of nominal voltage, or other ratio, the manufacturers of the product according to the different needs of the load can be set be higher or lower ratio, the current value is the nominal current.

toshiba Satellite A70 adapter Aspire aspire 5560 adapter sony VGP-AC19V11 adapter

Such as the ThinkPad 16V AC Adapter 72W nominal current is 4.5A (16 × 4.5 = 72). If the load resistance is too low, causing the output current exceeds the nominal current, generally two things will happen, one is the individual components of the cooling capacity of the heat caused more than burn damage caused by power, and the other is the thermal design margin left, merely reflect the output voltage is further reduced, if reduced too much may cause the load not work correctly.

Under the premise of guaranteeing quality, and we naturally hope that the more light the better the power adapter, the above comparison, we see some Lenovo notebook adapter has been successfully "downsizing", not only reduces the number of the volume, and reduced weight 0.24 kg or so.
Acer's new notebook a high degree of recent attention, in addition to cost-effective, but thinner than the other books is one of the reasons the body, but with the adapters into the bag if so, their total weight does not light than other books . It appears that Acer may be able to consider redesigning the power adapter and check it out.
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I believe that many laptop users have this feeling: prolonged use of laptops, the hottest place is not body surface, or even near the outlet, but the laptop next to the power adapter, holding in your hand will always be hot feeling, it will make people very worried about a sudden explosion or burn out. AC adapter laptop keyboard lcd screen laptop battery

Notebook Adapter is a high-precision, high efficiency switching power supply, its role is to 220V of AC power into low voltage DC, working for the notebook to provide a stable electricity.

As the power adapters are designed with fully enclosed structure, the shell does not have cooling holes, and no internal fan to aid cooling, and thus the power adapter at work, the internal temperature is high. Especially in the hot summer, touching the surface can feel the hot, the internal temperature is even higher. Thus in the daily office, entertainment, make it proper care and maintenance.

To create a good environment cooling

In high temperature environments notebook, power adapter should be placed in direct sunlight and well ventilated place; not the power adapter on the notebook's heat near the outlet, it will not only heat from the power adapter does not out, but also absorb some heat.

In the hot summer, we can put the adapter side to increase the contact area of ​​the adapter and the air, allowing the adapter to better distribute the heat out. For better heat dissipation, we can pad between the adapter and the desktop into a narrow piece of metal or plastic pieces to increase the speed of air flow around the adapter to speed up the adapter heat distribution.

An exception should be promptly discontinued

Toshiba PA3165U-1ACA adapter Dell Inspiron E1505 Adapter toshiba satellite A205 Adapter

Work in the power adapter Loud noise or smoke, is often damaged or malfunction, should immediately stop using, the professional engineer by the repair before it can again put into use.

Reasonable charge

When the notebook computer battery is charging, it is best not to run major 3D games and other heavy work load that whole process, so that the output power due to the power adapter is not enough spare capacity caused by slow or rechargeable battery dissatisfaction overloading the power adapter and so on.

Different models of notebook power adapter can not be mixed

Different brands of laptop power adapter output voltage and current values ​​so there are some differences, and therefore can not be mixed. Otherwise, at worst cause the battery to charge less power, the screen flashes and other phenomena, will be re-burned laptop motherboard or other hardware. Different models of the same brand of notebook power adapter for use should also be careful, it is recommended to consult the laptop manufacturer after the operation.

Currently, the rechargeable lithium battery technologies for your Apple notebook computer, iPod or iPhone showed the best performance to provide protection. You can also find in many other devices such standard cell technology. Apple uses lithium battery technology and other equipment have common characteristics. The batteries and other rechargeable batteries, eventually to be replaced.ASUS Eee PC Battery Sony VGP-BPS8 Battery
Industry-standard technology

Lithium-ion polymer battery than the nickel batteries with higher power density. Because lithium is the lightest metal, so the device lighter and longer life expectancy. You can at any time for lithium-ion polymer battery, but did not like the nickel batteries, to ensure the best performance, each of which must be fully charged and discharged. (As time goes on, will appear within the crystal of nickel batteries, to stop you a full charge, resulting in the situation can not be fully discharged.)
lithium-ion Battery Charge Chart


Standard Charge

Most lithium-ion polymer batteries are used a fast charge mode, your device can be quickly filled with 80% of the electricity, and then converted to a trickle charging mode to continue charging. If you do not use while charging, about two hours to 80% for the iPod is full of power, and then two hours to be completely filled. Can be repeated for all rechargeable lithium-ion battery, but a limited number of charge cycles, depending on the charge cycle may be.
Charge cyclesAcer Aspire 1680 Series AC Adapter   Acer Aspire 3000 AC Adapter   Acer Aspire 3500 Series AC Adapter 

Charge cycle. The battery is empty, then filled with a full charge cycle.

A battery charge cycle means that all the electricity used, but not equivalent to one charge. For example, you can listen to iPod a day for several hours, only half of the electricity, then it is fully charged. If you are still so the next day, this can only be counted as one charge cycle, not two, so you may take several days to complete a cycle. Each complete a charge cycle, battery capacity will be reduced a bit, even so, replace the batteries in the past, you can still give laptop computers, iPod and iPhone battery charging many cycles.
The most effective use of power

Your battery to maintain the length of time depends on the equipment you use. For example, watch the DVD than the simple word-processing power much faster. You can follow some very simple steps, the most efficient use of laptop computers, iPod, iPhone or iPad's battery life.
Battery Terminology Dell INSPIRON 1000 AC Adapter   Dell INSPIRON 1300 AC Adapter   Dell INSPIRON B130 AC Adapter

Battery means that your Apple notebook computer, iPod or iPhone's battery must be charged before use of time (sometimes also called "active time" or "run time").

Battery Life The battery had to be replaced before the end of all life.

Step Eight: win, if the test no problem, leave it then pay to the billing, pay attention to votes in the development of specific models of the machine is best to write clearly, so that in case of future problems can be handled easily . In the following, we recommend Xiaobian also more suitable for third year ten students selected models of notebook computers, is also based on the recommended utility-based models, prices are basically in the 6K or so, the home also need support to prospective students said, we are to spend the least money, buy the best goods.
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Installed capacity compared to previous years, students hot, today's students prefer to choose friends as their first choice for notebook, desktop and than, after all, DIY, laptop mobility of the machine has a big advantage, for the wireless networks are maturing universities, the notebook is undoubtedly the first choice of buying a computer graduate entrance examination. Compaq Presario CQ61 battery   HP G50 battery   HP G60 battery

Although many people will choose to purchase laptop computers as the first choice, but because of the many Middle School students are busy learning, usually on the laptop is not very understanding, so said the store did not know their own minds will be very easy to be some ulterior motives JS deceived, resulting in unnecessary loss of support here, I'll give you the recipe, but we recommend to all ten are more suitable for third year students choose a notebook, laptop if you intend to buy the near future, it may wish to send this article Read it again.

Step one: select models, the first thing to do before buying notebook is selected models they need, notebooks are consumables, although the notebook performance is more difficult, but who also allowed three years after Paul mainstream configuration will be stronger than it is now on the number of notebook performance, so when buying notebook to choose according to their needs, not too far in pursuing the strong performance of the model, if you usually just use the laptop to see some movies, browsing the web, that the mainstream price points Laptop fully able to meet your needs. If you usually are used to process video, audio, pictures are more powerful then choose a notebook processor. Word: that is best suited to their own. HP Pavilion DV6 battery   Compaq Presario CQ40 battery   Compaq Presario CQ60 battery 

The second step: that he gave "the enemy", where the enemy in fact refers to the notebook market, the stock market, and that white is the price of laptops, notebooks and more generally to the price of a few sites to see to fully understand the the main job here is to identify good models you want, of course, needs to be selected according to the first step, Xiao Bian here do not support you "burn bag", in particular, more attention is sure to select several models, 5 the most about Good, because now the notebook market shortage is a serious problem, if you select only a model, when out of stock, then the problem will be serious, then some of the JS will take this opportunity to recommend you for the so-called "more good "models, but also note that it is better to use a laptop or notebook write down the specific model, must take down all the sub-models, many models have a series of N kinds of configurations, this is not careful Hu You may also be businessmen, but also note that after selecting models to the official website to see, perhaps in the promotion, when the gifts have to prepare for follow-up note.

Basically, before buying the preparatory work has been completed, then the money is ready to kill it to the store!

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The third step: toward the store, where Xiaobian suggest that you go to large IT store, to a certain extent, this can reduce the risk of being cheated, after the first record to store a good place near the withdrawals, generally is not recommended to buy time carry large amounts of cash, although credit cards can now basically, but the general credit card, then part of the money will pay more, so it could save the province. To start looking after the dealer store it, then you can choose our PCHOME dealers, general reputation would be better, in general, if several layers of large stores, then, are generally the first floor of the flagship store, good service, but prices are relatively high, after all, the rent is higher, but credit is often better guaranteed. If you think you can level, then kil

Internal membrane keyboard

    Three films on the floor and the front panel has a rubber pad between keys; rubber mat protruding parts embedded in the front panel with the corresponding keys, press the corresponding button on the pad after the protruding part of the concave, the film , the next round metal contact layer contacts the hole through the middle barrier in contact, send the key signal. In the bottom of the upper corner there is a small circuit board, and its main components on a keyboard socket, CPU and disk health indicator.

    Because the keyboard is through electrical contacts on the contact layer under the metal contacts touch the round selected key signal, and thus circular metal contacts on the film oxidation required a rubber wipe clean; In addition, if output interface outlet oxidation should be a clean interface, with the eraser part of the oxide layer. Embedded in the three films on the floor between the general and no dust, just clean paintbrush to the film surface.

toshiba Satellite A505 Keyboard hp Pavilion DV7 Keyboard

  Mechanical key keyboard, remove the mechanical key internal keyboard Bottom you will see a circuit board, circuit board are a few screws in the keyboard on the front panel, unscrew the screws to remove the circuit board. Disconnect the cable connecting the plug and circuit board, paintbrush or oil paints can remove the circuit board and the keyboard keys on the dust. Generally do not have to clean with a damp cloth. Key switch soldered on the circuit board, card key switch keycap.
Keyboard panel

    6. Cleaning methods after the installation and removal of equipment back, put back the time to pay attention to keep hands clean or dirty side put back the keyboard.
AC adapter laptop keyboard
    7. When installed in various locations to be aligned to avoid dislocation occurs when installing other components.

    8. The soft can clean up the back of the circuit, install the keyboard back on, tighten the screw. Try clicking the keyboard feel is normal, there is no part shake loose the sound.


Finished cleaning the keyboard clean

    9. Finally, plug in the computer, try the various key functions are normal. If you have problems, see if it is to re-install the demolition of the location error.

 Keys keyboard membrane keyboard electrical contacts within the open floor and cover later, you can see embedded in the floor of the three films: the next three films were contact layer, middle layer and the contact layer of isolation. Upper and lower metal contact layer to suppress the circuit connection and with the keys corresponding to the circular metal contacts on the middle barrier and the upper and lower contact layer corresponds to the hole. All electrical contacts of the keyboard keys embedded in the front panel,

compaq Presario CQ60 Keyboard dell XPS M1530 Keyboard

toshiba Satellite L505D Keyboard compaq Presario V6000 Keyboar

The depth of a thorough cleaning. If you want to give the keyboard a thorough cleaning, the cap of each key would have to be removed to children, according to the corner from the keyboard to the middle part of the order, one by one, the space bar and enter key and other large difficult to return the key cap in situ, so as not to split. To avoid forgetting the location of the buttons, it is best to use the camera to shoot down the keyboard layout, or draw a sketch. After removing the buttons, it can be soaked in detergent or disinfectant solution and disinfectant wipes with cloth or carefully clean the keyboard base. So on a regular basis to remove the keyboard, can guarantee a clean and sanitary.

dell 0p446j keyboard hp Pavilion DV6000 keyboard

dell Inspiron 1520 keyboardacer Aspire 6930 keyboard

We have to demonstrate that dirty keyboard

How to take apart and wash clean the keyboard

1. Unplug the keyboard connected, the keyboard upside down, loosen the screws on the back, and then carefully took down the back cover. Unscrew the screw to be placed in a small box inside.


Loosen the screws on the back of

2. Will be demolished under the keyboard, you can see the soft circuit film, you can use hair dryer (cold) Put some dirty material to blow away. Then carefully turn up positive, soft circuit board is not too complicated, just a few carefully handle the circuit wire connection, the indicator light on it. Then use a cotton swab dip cleaning agents, carefully clean the front slowly.

dell Vostro 1720 keyboard hp Pavilion G60 Keyboard

dell NSK-D9301 keyboard toshiba Satellite L505 Keyboard
Constitute a break up of the keyboard

3. Followed by the demolition of all the buttons, each button on the rubber pad has a separate, first to win all of them. All scored in the rubber pad can be dismantled after the key was. Plastic snap button is used to fix, so long as the pulling force can be removed. Be careful not to pull too much brute force the key bad.