Digital battery

Computer battery is the heart but also in relation to the benefits office. Today, most of the battery from the laptop working time mostly between 2 ~ 4 hours, may not be able to meet the needs of users. So for those who need a mobile office or common friends walking, prepare a backup battery is also very necessary. In addition, the Laptop battery is kind of consumables in the use of one or two years will be significantly diminished after the performance, coupled with some users do not generally pay attention to the maintenance of the battery, performance of the battery and the rapid decay of examples of early retirement are not uncommon. How to choose a cost-effective battery is a large number of users wishing to understand the problem. This time, we come to discuss the purchase of the battery.

     

1. Note that the parameters of the battery

  

Laptop batteries are not common, users must first understand the purchase of the battery before the battery type to support their own machines. Most laptops are used in lithium batteries, which is regular lithium-ion batteries. There is also a lithium-polymer battery, but only in certain high-end ultra-thin notebooks to use. Li-ion battery is normally supplied by the IBM ThinkPad T43 battery unit to protect the circuit and the capacity for surveillance and communications circuit of several components. In terms of settings, the battery capacity is an indicator of concern. The current capacity of the battery is typically between 3000 ~ 4500mAh, but also some with a capacity of 6000mAh.

 

In theory, the highest values in the same configuration using the longest. The manufacturer of the battery cell has a more detailed description can often see the “six-core 4400mAh”, “4-pin 2200mAh” nominal value such as batteries, but in fact is not directly determine the ability of 4400mAh or 2200mAh Laptop hours. When we speak of the power consumption of computers, the total use of rated, rather than simply being. The union of 2200mAh, 3.6V batteries, for example, could use, even modestly, the composition of the four batteries in series, where the voltage is 14.4 V Capacity 2200mAh. Many 14-inch laptops, you can use 2 and 4 strings of 8-cell hybrid mode, the voltage is 14.4 V, capacity has doubled to 4400mAh, to ensure a longer period of use. However, the same is a 2200mAh, 3.6V batteries, if we adopt the 2 and 3 strings of 6 hearts hybrid approach, its battery capacity, it will always 4400mAh, voltage up to 10.8V, if we look only at full capacity, the schedule should be, and 8 the same Dell Latitude D800 battery cell. If you press the power, then 8-lithium battery cells, the power should be 63.36Wh, 6 cores for 47.52Wh, 4 cores for 31.68Wh. If, after this value, the benefits of the 8-cell lithium battery can be taken into account.

 

Also note that when the battery in the choice of mold original battery shell generally more standardized in the laptop charge will not appear when he is charged with making difficult decisions or loosening of the situation, another label in choosing not to buy when writing the rough and does not disable the battery. In addition, some posing for the renovation of the new battery, the hp Business Notebook nx7400 battery must also be aware that these battery electrode traces of heavy general wear and tear, gloss, and a new battery is not.

 

  

 

2. Take a look at the quality of the battery

  

Under normal circumstances, the quality and weight of laptop batteries is proportional to. As the original circuit the battery protection are more monitoring in place, the quality is better on batteries, so that the weight of the entire battery as Jerry-build is much greater when you buy them hand to try the weight, if the toshiba PA3399U-2BRS battery lighter than their original number, then be aware. Some time ago, Sony, Dell, Apple, Lenovo and other brands of portable avalanche of quality problems, making original battery gives a bad impression.

 

It is also compatible with battery sales market, such as “I can” series laptop battery on using the original mark of integrated circuits and high quality design and manufacture of batteries, not only all the protection of the original battery, and stable performance, the use of time is relatively long, the actual performance with the original battery is not much difference in price is well below the apple PowerBook G4 12 inch battery of origin. I therefore believe that, if dissatisfied with the original battery, you can buy excellent quality, brand compatible batteries.

 

At the same time, we must pay attention to these small workshops producing compatible batteries. The internal circuit design of these batteries is extremely simple and the quality of batteries used in later times, and some have even adopted, disassemble or brand name batteries, this battery is compatible with the quality of the natural n ‘ is not guaranteed. In addition, some laptop batteries inside the failure of the original battery, a number of companies around the car battery door to change batteries original equipment, “life”. However, this Aspire 3000 battery is no longer true meaning of the original battery, and its quality depends largely on how the quality of batteries.

 

3. The cell performance test

 

Laptop batteries buy at the store, it can not easily buy a right to prevail. The test battery is an essential element. First held in the center of cycles of load test, and the second waiting time. Many people think that the battery life of portable calculated according to life, in fact, the real factors that play a role should be charged and discharged completely once. In general, the international brand of the product line notebook will be included in its software, which provides a management tool to the battery. This tool reads the battery pack inside the chip of intelligent control to see how time use of the capacity of the TravelMate 290 battery design, the actual loading and unloading times and other information. Through which users can understand some of the cell surface, no visible label information.

If the purchase is a battery of new original equipment, rechargeable batteries should pay attention to whether the frequency of 0 (number of charge cycles up to 2 ~ 3 times, because some merchants of buy the battery after the charge and discharge test). Second is to check the battery capacity. The battery is fully charged capacity and design of the comparison, if we find completely filled with a lot of capacity is lower than the design capacity, which indicates a significant reduction in battery performance are not recommended for purchase. If your laptop program management of the IBM ThinkPad R32 battery did not see the battery fully charged capacity options, such as using software to detect BatteryMon.

 

If conditions permit, it is better to buy a laptop battery is fully charged and then placed in an attempt to run the Internet, DVD players and other operations. If the test, the screen suddenly black sudden or irregular flashing light, or battery monitoring software for the discharge curve is not smooth, there is the phenomenon of power-dump (for example, 70% to 6% at night), indicating that cells not stable, may be the quality of internal batteries are not good enough, or the design of the circuit is not in place, these batteries do not buy it a. Have a lot of time, you can always test until the Dell FK890 battery runs out, the final report that the actual use of the battery is in the normal range. It should be noted, however, because the real test is difficult to achieve the required official standby power consumption when the usage time of the battery and the disparity between the nominal system is not too great, and not can not prove that the battery problems.

    

4. To understand the battery after sales service

  

Laptop batteries are expensive consumables, can not ignore its after sales service. In terms of the warranty, the battery can say that all accessories laptop accessories in the shortest warranty period. Most of the battery warranty is only 3 months to six months, and even some simply no guarantee for maximum security of the battery a few years. In general, the new battery can take 3 months or 6-month warranty period, if used batteries, but only 7 days to 1 month warranty. Therefore, before making a payment shall be liable to the consumer to ask about the activity period battery warranty and conditions, do not forget to request an invoice to the merchant or the seal of approval, and allow businesses indicate the hp PP2182L battery warranty.

 

In supply, laptop battery on the market mainly on the official website of the brand of notebooks and maintenance of points, laptops and other merchants and online stores. The official website laptop batteries brand and maintaining sales prices generally higher; Business Notebook PC in town cheaper than the official figures, but the quality of services vary considerably, there are many “deposit” has been secretly “change the” core phenomenon. Official Service Center does not provide redress (eg for the heart, activation, etc.) business. The sony VGP-BPS2 battery recycling will be centralized, there is no ” maintenance center “argument.

 

Therefore, a comprehensive review, then we can consider buying the brand is consistent with the manufacturers of regular batteries. On the one hand, and the quality of the batteries original equipment is not very different, other, informal businesses are also more standardized after sales service.