Replace Laptop battery in NZ

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  • What are the maintenance precautions for the computer mainframe?

    First, start up regularly, especially in the wet season, otherwise the chassis will be short-circuited due to moisture, and the computer often used is not easy to break. However, if there is no lightning rod around the home, do not open the computer while thundering, and remove all the plugs.

    Second, pay attention to heat dissipation in the summer, avoid using the computer for a long time in a room without air conditioning, and pay attention to antifreeze in winter. The computer is actually afraid of cold.

    Third, when you don’t need a computer, you should cover the monitor, the chassis, and the keyboard with a breathable and cloakable cloth, which can prevent dust from entering the computer.

    Fourth, try not to turn the machine on and off frequently. When not in use, simply use screen saver or hibernate. Do not move the computer while the computer is in use, do not let the computer be shaken, and do not plug in all the hardware devices in the power-on state, except for USB devices.

    Fifth, use the power socket with overload protection and three pins, which can effectively reduce static electricity. If the hand can feel static electricity, use a wire with an enameled wire (that is, plastic outside, which is copper wire inside), and one end is wrapped around the rear panel of the chassis. On the top, it can be wrapped around the fan air outlet, and the other end is preferably wrapped around the water pipe. If you can’t touch the water pipe, look around, as long as the metal object can touch the earth (soil).

    Sixth, develop good operating habits, try to reduce the number of loading and unloading software.

    Seven, follow the strict sequence of power on and off, should first open peripherals, such as monitors, speakers, printers, scanners, etc., and finally open the chassis power. On the contrary, you should turn off the power of the chassis first. (Currently most computer systems can automatically power off the chassis)

    Eight, do not place speakers around the display, there will be magnetic interference. The darker the brightness of the display during use, the better, but the comfort of the eyes is better.

    Nine, do not place water or liquid materials around the computer to avoid accidentally knocking over the inflow causing trouble.

    Ten, the numerous lines behind the chassis should be straightened out, do not entangle each other, it is best to use plastic hoops or rubber bands to tighten, the advantage of this is that it is clean and not dusty, the line is easy to find, there are small animals in the family. Avoid being destroyed.

    Eleven, every six months, a large-scale cleaning of the computer, thoroughly remove the internal dirt and dust, especially the chassis, but under the premise of certainty, if you are not familiar with the hardware, it is still rare.

  • What should I pay attention to when using a notebook power adapter?

    1, create a good cooling environment
    When using the notebook in a high temperature environment, place the power adapter in a place that is not exposed to direct sunlight and ventilation; do not place the power adapter near the cooling air outlet of the notebook; at the same time, we can put the adapter on the side to make the heat more Well distributed.
    2. If the voltage is unstable, it needs to be stopped in time.
    Although the adapter is a wide-band operating voltage, it can be marked from 100V to 240V, but if it is used under extremely unstable voltage, it will also cause serious heat or damage to the power adapter.
    If you need to temporarily borrow power from other brands, try to choose an adapter with the same or larger output current.
    3. If an abnormality occurs, stop using it in time.
    When you are not using the adapter, unplug the power cord. Prolonged power-up will keep the adapter working and will affect the end of life. When the power adapter emits large working noise or even smoke, it is often damaged or has a fault. It should be stopped immediately and can be used again after being repaired by professional engineers.

  • Laptop power adapter selection method

           The popularity of laptops has brought great convenience to people. However, new troubles have come one after another. What should I do if the notebook power adapter is lost or broken? Some people say that it is not OK to buy an original one? The original notebook power adapter of the same model can certainly be used, but in many cases can not buy the original notebook power adapter, and the original notebook power adapter price is very high, how to do it? How to choose a laptop power adapter?

    In fact, for the notebook power adapter, if the working parameters and output connectors are the same as the original ones, then the different brands can be used universally, and the working parameters are not strictly the same, and there is a certain allowable range of variation. This article describes how to choose a notebook power adapter.

    Laptop power adapter selection method

     

    1. Clearly use:

    For laptops and laptops used in homes and offices, you can buy a home (AC), a laptop power adapter for a car, buy a car, and use the car on the basis of the car. It is ok to have an airplane head. At home, in the car, in the plane, I want to take care of it, buy a two-in-one, or three-in-one. However, if you don’t want multiple weights in your computer bag, you can put one at home, one on the car, one in the office, so you don’t have to bring it, plug it in, it’s more convenient, you can also use it for people around you. .

     

    2. Choose a good brand:

    The principle is to choose the same type of brand, if not, then you can only find other brands. Nowadays, many laptop power adapters sold online are unqualified products for cutting corners. Normal use should be no problem. Once an accident occurs, your laptop will be burned, and dozens of notebooks that have been burned out and burned thousands of pieces will not be worth the candle. (Stolen work, common practice has chaotic power, such as the actual only 19V3.42A, but the standard 19V4.74A, this will lead to very slow charging, and even damage the battery and laptop. Also remove some protection, this is more horrible, appear The accident will burn the laptop.)

    I suggest you have ample money, you can buy a professional brand of notebook power adapter (that is, the professional only for the brand of laptop charger, not what the power supply does, such a professional brand-name product is not It will cause damage to the battery and laptop, and the protection circuit is advanced.) For example, Icharger, Acharger (ATUU brand), etc. (though these brands are mainly sold in Europe and America, domestic retail is rarely found). Domestic famous brands such as Sterk and Ruirui.

    3, clear voltage, current and interface

    Look at the brand of the original laptop, the number of V on the label behind the original charger, how many A (generally written behind OUTPUT), the connector of the charger is about round or square, or porous, Do your own mind, there will be a few, so as not to buy the wrong, or even be fooled.

    The output voltage of the adapter is preferably equal to the voltage required by the notebook. If it is different, it is as close as possible to the required voltage of the notebook, and the control is within ±5% error. This is because the voltage regulator circuit in the notebook generally has a margin design. When the input voltage changes within a certain range, it can work normally and stably; beyond this range, the voltage is too low, the computer may not work stably or even light the machine; if the voltage is too high, the voltage regulator circuit inside the computer may be burned. Such as an Acer notebook, it requires 15V, 3.36A input, but with IBM 16V, 3.36A adapter can be used with it.

    The maximum output current of the adapter is as close as possible to the maximum current required by the notebook. If it is different, it must be equal to or greater than the current required by the notebook. Note: As long as the current is large, you don’t have to worry about it, no matter how big it is. Fear, don’t worry about burning the machine! But the current can’t be too small, because unstable conditions such as screen flicker may occur. For example, the IBM T30 adapter (16V, 4.5A), although safely used on the IBM ThinkPad T20 (16V, 3.36A), can also be used on the ThinkPad X31 (16V, 3.5A); the principle is: the power adapter is based on the load The situation to adjust the output current is not static. Like the IBM 16V, 4.5A adapter above, it can provide up to 4.5A of operating current, but on the T20, it also outputs a maximum of 3.36A. In fact, due to the different working conditions of the notebook computer, the current required by it is constantly changing. The adapter adjusts the output power at any time according to the working condition of the notebook to meet the needs of the computer. The adapter with a larger output current is more convenient, and it tastes like “killing a chicken with a knife.” But if the reverse is not good, although the T20’s adapter can also light up the T30, the T30’s screen sometimes flickers because the T20’s adapter does not provide the required operating current for the T30.

    At present, the power of most mainstream notebook power adapters is set at 65W, but it should be noted that the power supply voltage output and current output are not the same. Although the author uses a compatible power supply as a reference, the value is not inferior to the original power adapter, so it has the same reference value. In the mainstream notebook power adapter, DELL’s HPOQ065B83 has a voltage output of 19.5V and a current of 3.34A. The ACER-compatible PA-1600-02 produced by Lite-On has a voltage output of 19V and a current of 4.74A.

  • Notebook power adapter development history

    In 1985, Toshiba (TOSHIBA T1000) took the lead in externally plugging the notebook’s power supply, creating the world’s first independent notebook power adapter, and began commercializing and popularizing notebook computers.

    In 2001, Apple (APPLE powerbook G4) developed a stylish and lightweight notebook power adapter, pushing the notebook charger to a new level.

    In 2003, a group of technical teams (formerly AATUU team) developed and mass produced the world’s first universal notebook chargers that are fully compatible with the world’s major brands of notebook computers. Bring the notebook power adapter into the era of true universal notebook chargers.

    In 2009, the world’s first universal notebook charger professional brand Acharger, which has suffered many years of hardship since its birth, was finally officially launched under the planning of AATUU. Only created the world’s first professional brand of notebook chargers.

    In 2010, Acharger became the world’s first all-round charger (compatible with laptop chargers), changing the history of notebook chargers for nearly 30 years. Bring the notebook charger into the era of all-round chargers (compatible with laptop chargers, compatible with solar energy, wireless charging technology).

  • Can different notebook adapters be used by each other?

    For the power adapter, whether it can access the device, there are several measures:

    Interface form

    The interface plugs and sockets used must be sized.

    Voltage size

    The output voltage of the adapter is the same as the voltage required by the connected device (such as a notebook). Inconsistent, it may be that the device cannot be started or burned properly.

    Current or power

    The power of the adapter is greater than the maximum power required by the device. Insufficient power may cause a voltage drop, an abnormal heat in the adapter, or burn the adapter.

    In summary, the power adapter with a higher power can be replaced if the interface and voltage conditions are met.

  • WAP mobile phone knowledge

    The WAP mobile phone is a new communication tool that combines mobile phones and mobile computers. It not only has the functions of ordinary mobile phones, but also functions of sending and receiving e-mails, faxes, browsing news, and viewing stock market conditions.

    The difference between a WAP phone and a normal mobile phone is that it has a built-in miniBrowser, Cache and memory. Just as a computer uses a browser to access the Internet, WAP mobile phones use a micro-browser. Similarly, WAP mobile phones also have to go through a series of settings. See the WAP mobile phone technical support for specific settings.

    As many people imagine, there is a big difference between WAP mobile Internet access and ordinary computer Internet access. Due to the small memory of the WAP phone, the small screen and the narrow wireless band, the content of the webpage displayed by the WAP mobile phone is mainly text, and there are some smaller pictures, but only black, white and gray. Industry experts pointed out that WAP technology that can make mobile phones and handheld computers become Internet tools will be the next hot spot of Internet technology. However, mobile Internet access is really popular. There are two preconditions. That is, WAP must solve the problem that is not easy to operate at present. Both need network operators to step up the basic construction of WAP network, making WAP mobile phones useful. .

    WAP phones can send and receive emails, read news and stock quotes, but more complex communication applications, such as online procurement and video conferencing, can’t meet the current mobile communication network. At the Cebit Technology Expo, which will be held in Hanover, Germany, a comprehensive “speed up” of mobile communications to make the Internet mobile will be a hot topic for participants.

    According to Ericsson, mobile Internet users will reach 600 million by 2004. According to data released by Forrester Research, a US research institute, in 2004, one-third of people in Europe will use mobile phones to shop and receive online information.

    In this competition for mobile Internet users, Japan is one step ahead. Next year, Japan’s first third-generation mobile communication network based on wideband code division multiple access technology will be put into operation. Europe will follow.

    The following is a question and answer about the operation of WAP mobile phones.

    1. How do I type the URL?

    1. Open the phone and enter the ‘Services’ option; 2. Press the ‘OK’ button; 3. Select ‘Bookmarks’; 4. Press the ‘OK’ button; 5. Select ‘Add Bookmark’; 6. Type what you want Look at the URL, such as: wap4.com;
    7. Press the ‘OK’ button to save.

    Second, how to access the Internet?

    1. Open the phone and enter the ‘Services’ option; 2. Press the ‘OK’ button; 3. Select ‘Home’ or ‘Bookmarks’; 4. Press the ‘OK’ button. At this point, you will see the start dialing. The picture may be waiting for a while, you can see the content on the Internet. Sometimes it takes a long time to be normal.

    Third, why can’t I dial the Internet several times?

    Assuming your settings are correct, this is because the current wireless communication bandwidth is too narrow, only 9.6kbp / s, better, 14.4kbp / s, the dialing time becomes longer, and even timeout is broken; or, you choose The dial-up service provider is too busy and there are too many Internet users.

    If your settings are correct, you can check the WAP phone settings.

    Fourth, if you want to use the WAP mobile phone to access the Internet, WAP mobile phones need to apply for those services?

    If you want to use the WAP mobile phone to access the Internet, you must open a general call service, short message service, and data service before using it.

    After you have applied for the above services, set up the Internet again.

  • How and when to charge your tablet battery

    First charge: When you first unbox your tablet, you should approach the first charge differently, depending upon the type of battery the tablet has:
    Lead acid: The battery should be fully charge. Apply a top-off charge before using.
    Nickel-based: Charge the battery 14-16 hours before the first use.
    Lithium Ion: Apply a top-off charge before the first use.
    Full vs. partial charge: Some batteries actually do poorly if you only give it a partial charge.
    Lead acid: You must always give this battery a full charge, as a partial charge can create sulfation.
    Nickel-base: A partial charge is good.
    Lithium Ion: A partial charge is actually better than full charge.
    Full discharge: There are types of batteries that actually prefer a complete discharge now and then.
    Lead acid: A deep discharge can damage the battery.
    Nickel-base: Apply scheduled discharges only to prevent the battery from retaining memory.
    Lithium Ion: A deep discharge can damage the battery.
    Battery calibration: Some batteries do not need calibration. Here are the details:
    Lead acid: Not applicable.
    Nickel-base: Apply a discharge/charge when the fuel gauge becomes inaccurate. Repeat every 1-3 months.
    Lithium Ion: Apply a discharge/charge when the fuel gauge becomes inaccurate. Repeat every 1-3 months.
    Use while charging: Is it okay to have your device on while charging it?
    Lead acid: It’s okay to have device on when charging.
    Nickel-base: It’s always best to turn the device off during a charge, since a parasitic load can either alter full-charge detection, overcharge the battery, and/or cause mini-cycles.
    Lithium Ion: It’s always best to turn the device off during a charge, since a parasitic load can either alter full-charge detection, overcharge the battery, and/or cause mini-cycles.
    Unplugging when charged: Is it necessary to unplug your device once the charge is complete?
    Lead acid: This depends on the charger. If the charger has correct float voltage, then it’s fine.
    Nickel-base: Always remove your device after a few days in the charger.
    Lithium Ion: This is unnecessary, because the charger turns off.
    Temperature: How does temperature effect charging?
    Lead acid: It creates a slow charge from 32-113 degrees Fahrenheit / fast charge from 41-113 degrees Fahrenheit / the threshold is lowered above 77 degrees Fahrenheit.
    Nickel-base: It creates a slow charge from 32-113 degrees Fahrenheit / fast charge from 41-113 degrees Fahrenheit / the battery will not fully charge when it’s hot.
    Lithium Ion: Do not charge below freezing. Do not charge when above 122 degrees Fahrenheit.
    Of course, this doesn’t take into consideration the effects of various types of software or networks (such as 4G, which will quickly drain a battery). Ultimately, if you use your battery with intelligence, it will reward you with a long life.

  • The life of your tablet battery

    Much of the change in batteries grew out of the necessity of safety in portable devices. Because mobility means taking a device through severe heat, cold, shock, and vibration, the batteries had to designed for maximum safety and longevity. Although many may doubt this claim, storing energy of several kilowatts can be dangerous, especially when stored in a device that’s constantly on the move and often dropped, shaken, and exposed to harsh environments.

    Since these batteries are tucked safely away from the user, it’s up to the physical and software systems — the Battery Management System (BMS) — to care for them. The BMS handles some fairly complex tasks, such as managing the integrity of a battery when cells begin to fail (usually due to the battery lifespan). Unfortunately, the BMS can’t do everything. The user of the device still has to take care of the mobile to ensure extended and safe battery life.

    Here are three main tips that should easily apply to all batteries in mobile devices:

    Temperature: Do not expose your device to extreme temperatures. Cooler temperatures prevent battery corrosion, so it’s always best to keep your device from overheating. It happens. Working with a tablet in your lap, you can feel the warmth heating up your legs. That means the battery is also getting hot. Work with your tablet in such a position that heat can easily dissipate. Discharge:It’s a myth that modern batteries need a full discharge to retain “memory” (this only applies to a nickel-based battery pack). Every full cycle wears the battery down by a small amount. So, smaller discharges are better. Try not to let your battery go beyond the half-way point before applying a charge. Abuse: This is a no-brainer, but people do get careless, and every drop of that tablet runs the risk of damaging the battery within. This also applies to improper discharges. These types of discharges can happen when a process gets out of control and is allowed to continue on, which quickly runs down the battery. If you see this happening (if the tablet starts responding slowly), find the rogue process and kill it or restart the tablet.

    ​

  • 7 tips to extend your tablet’s battery life

    Step 1: Find out what’s sapping your tablet’s power

    Android provides a quick and easy way to see what’s draining most of your tablet’s power. Go to Settings > Battery. This will show you a bar graph of the different hardware, apps and processes that are putting the most drain on your battery. The greatest drain is almost always the screen, as powering the backlight for your tablet’s large display uses a lot of energy. So where possible, turn it off (while using the tablet to play music, for example).

    Step 2: Turn the screen brightness level down

    Adjusting the brightness level of your tablet’s screen can save a lot of battery power. To do this, open Settings > Display >Brightness. A pop-up window will display a slider which you can use to change the brightness level. If the slider isn’t visible untick the box marked Automatic Brightness. Reduce the brightness to a level that’s less intense but still comfortable for you to read text on your screen without straining your eyes.

    Step 3: Reduce the screen time out

    Reducing the amount of time your screen stays lit after you’ve stopped interacting with your tablet is another good way of slowing battery drain. Return to the Settings > Display menu and select Sleep. Reducing this setting tells your tablet to turn off the screen after a set period of inactivity. The shorter the time you select, the less power your display will use. Try changing it to a setting of two minutes. That way you’ll avoid sapping its battery life if you leave it unattended.

    Step 4: Turn off unwanted connections

    Wireless network technologies such as wi-fi and Bluetooth also consume quite a bit of power, so if you’re not using them it’s best to turn them off. This is especially true of Bluetooth, which many people never use on their tablet yet still leave turned on. Go to Settings and select Bluetooth under the Wireless & Networks heading. Flick the switch to Off to disable Bluetooth. If you’re using your tablet on a long bus or train journey – or anywhere there’s no wi-fi reception – you should also turn off wi-fi to save power. Open Settings and switch the wi-fi toggle switch to Off.

    Step 5: Avoid using live wallpapers and widgets

    Android’s Live Wallpapers and Widgets require processing and graphics power to run so put extra drain on your battery. It’s a relatively minor amount, but if you do want to absolutely maximise your tablet’s battery life you may want to get rid of them. Delete widgets from your homescreen by tapping and holding on them before swiping them up to the Remove icon. To change your wallpaper, tap and hold on an empty part of your homescreen and choose Wallpaper from the pop-up menu.

    Step 6: Fully discharge the battery

    The lithium ion batteries used in almost all Android tablets don’t suffer the over-charging problems of older Ni-Cad batteries, so they don’t always need to be run down completely to stay at their best. However, to keep the battery’s power meter correctly calibrated it’s still a good idea to let your tablet run out of battery power every 30 charges or so. If you use it most days, aim to run it down for once a month or so.

    Step 7: Turn off Auto-sync

    There are various apps and services on your tablet that automatically sync data with online servers, for storing contact information, providing Facebook alerts and sending email to your tablet. These syncing processes can drain power, especially if they’re pulling in a lot of information.

    You can see which accounts are set up to auto-sync by opening Settings and choosing Accounts and Sync. If there are any you don’t want or need to sync in the background just tap on their name and untick the Sync option.

  • Barnes & Noble BNTV600 （3.7-6000MAH）

    Barnes & Noble BNTV600 （3.7-6000MAH）

    NEW BNTV600 6000mAh Battery For Barnes & Noble Nook HD+ Plus, NOOK HD+ 9inch

    Battery type: Li-ion
    Voltage: 3.7V
    Charge limit voltage : 4.4V
    Capacity: 6000mah/22.2wh
    Condition: 100% Brand new & High quality
    Color: Black

    Replacement Part Numbers:
    BNTV600
    Compatible Models：
    For Barnes & Noble Nook HD+ Plus, NOOK HD+ 9inch