Laptop Battery Upgrade Purchase

It is well known that the good mobility of laptops is built on their slim fuselage and long battery endurance. In particular, batteries, for users to use notebook computers anytime and anywhere to provide a solid protection, batteries have therefore had the "source of power" reputation. If the performance of the battery is poor, the mobility of the laptop will be greatly reduced, and the application area will be limited. In addition, some users who often carry laptops out of work (such as Business travelers, field exploration workers, etc., often on the mobile requirements of notebook computers are more fastidious, so when the battery's endurance to put forward higher requirements, the original laptop battery can only use 2-3 hours, has not been competent for their application needs. For the above users. It is imminent to choose a new battery or an extra battery.

Which upgrade scheme is more appropriate

Before choosing a battery, it is necessary to know the type of battery on the laptop. The market for our purchase of notebook batteries are mainly standard batteries, extended batteries and three types of plug-in batteries.

The so-called standard battery, refers to the configuration structure, capacity, interface and so on with the notebook computer random with the main battery exactly the same battery (Fig 1). Some manufacturers take into account the actual needs of users, but also the production of an interface with the same standard battery of the enhanced battery (Figure 2) for the user to choose, this type of battery capacity than the standard battery is larger, you can get longer use time. For example, the standard battery (6-core) of the ThinkPad T40 laptop is 10.8v/4.4ah, and the enhanced battery (9-core) is 10.8v/6.6ah, which has a real endurance of 1.5 times times the standard battery.

The extended battery can also be called a second or secondary battery, which is an additional type of battery that can be used simultaneously with the main battery. This type of battery is usually connected to the notebook computer via the optical drive location or a dedicated slot. The extended battery at the location of the optical drive (Figure 3) is about the same size as the laptop optical drive, as the extended battery can be plugged into the optical drive location for normal use, because there is another battery circuit interface near the optical drive and the motherboard connection. Another extended battery (Fig. 4) is flat, relatively large, slightly awkward to use, but with a higher capacity, the extended battery is connected to a notebook computer using a dedicated expansion slot (Figure 5). Extended batteries generally support hot plug, and the main battery with the use of more convenient. The extended battery, depending on the size of the capacity, allows the machine to obtain an additional 2-5 hours of working time.

Unlike extended batteries, the plug-in battery (Figure 6) is not limited to a brand of a certain model or a series of products, but for most brands of notebook computers. In connection with the host, the plug-in battery is also the same as standard batteries, extended batteries, all external batteries are directly from the host DC power input port to power the notebook computer. In the function, the plug-in battery is generally built-in intelligent control chip, with low voltage alarm, charge and discharge intelligent control and protection characteristics, and some products in order to allow users to obtain more intuitive residual power indicator, the shell also designed with a power indicator. In order to adapt to the market using different power interface of various brands of notebook computers, plug-in batteries are equipped with a variety of types of power interface. The price of the plug-in battery according to the capacity and brand different and there are big differences, such as Polarmate plug-in battery, PM 148-4000 (capacity of 4000mAh) Price is 550 yuan, pm148-6000 (capacity is 6000 mAh) need 810 yuan.

Purchase and inspection

Buy the original or buy OEM?

The laptop standard battery sold on the market is divided into original battery and OEM battery. Original battery can be purchased through the laptop manufacturer's repair station and the official website, in addition, some in the computer city and Taobao, ebay and other specialized notebook computer accessories will also have the original battery to sell, the price to many, generally only one-third of the price of manufacturers or even less. It should be noted that some businesses often take OEM batteries as the original battery to sell, in order to obtain more profits. The so-called OEM battery, in fact, is compatible with the battery, even can be called imitation Battery. This type of battery quality is mixed, some of the products from Shenzhen, Guangzhou and other small workshops, the internal materials are relatively simple (such as irregular circuit design, dismantling electromechanical core, etc., Figure 7), the quality of nature is not guaranteed.

Choose the original battery or OEM battery, depending on the user's affordability and ability to identify, if the budget is limited and has a strong ability to identify, in the market to Amoy a good quality OEM battery is not impossible. If you want to buy the worry, with peace of mind, the original battery is undoubtedly the best choice.

How to detect?

If you buy the original new battery, because enjoy the perfect after-sales service, generally do not need to carefully detect, just check whether the number of charge is 0 (only some laptops have this function), and then use Batterymon and other software to check the battery capacity and design capacity is consistent (Figure 8).

For OEM batteries and second-hand batteries, it is recommended to use the actual trial or professional testing software to detect battery performance. Charge the battery with electricity, then install it on the appropriate model, use it to surf the internet or play DVDs, and see how the battery lasts to determine its actual performance. If the software to test, although the time spent relatively long, but more accurate detection results, testing software can use Batterymark 4.0.1 or MobileMark2005.