3. Test cell performance
Buy laptop batteries(1691P , 1K500 , 1X793 , 2M400) at the store, it can not easily buy a right to take away. The battery testing is an essential part. First, view the focus of the test charge cycles, and second, standby time. Many people think that laptop battery life calculated in accordance with laptop battery life, in fact, the real factors that play a decisive role should be to fully charge and discharge times. In general, the international brand of notebook product line will be included in its software, which offers a management tool for the battery. This tool by reading the battery pack inside the intelligent control chip to see such as the use time of battery design capacity, actual capacity and charge-discharge times and other information. Through which users can understand some of the cell surface, not visible label information.
If the purchase is a new original equipment batteries dell C1295 battery, dell GD761 battery, dell KD476 battery, , rechargeable batteries should pay attention to whether the frequency of 0 (number of charge cycles up to 2 ~ 3 times, because some merchants have to purchase the battery after the charge and discharge test). Second is to check the battery capacity. The battery fully charged capacity and design capacity of the comparison, if we find completely filled with a lot of capacity is less than design capacity, indicating a significant reduction in battery performance have not recommended for purchase. If your laptop’s battery management program does not have the see the battery fully charged capacity options, such as using software to detect BatteryMon.
If conditions permit, it is best to buy a dell laptop battery is fully charged and then placed in a try to carry out the Internet, DVD players and other operations. If the test, the screen suddenly appears suddenly dark or irregular flashing light, or the battery-monitoring software for discharge curve is not smooth, there is the phenomenon of power-dump (for example, from 70% down to 6% overnight), indicating that battery-powered not stable enough, may be the quality of the internal batteries C1295 , C5331 , C5340 are not good enough, or circuit design is not in place, these batteries do not buy a. Have plenty of time, you can always test until the battery power runs out, the final accounting of what the actual use of the battery time is in the normal range. It should be noted, however, because the real test is difficult to reach the official required standby power consumption when the battery usage time and the disparity between the official nominal is not too large, and 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. From the perspective of the warranty, the dell Latitude D520 battery can be said 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 warranty, for up to one-year warranty battery few. In general, the new battery can enjoy 3 months or 6-month warranty period, if it is used batteries, but only 7 days to 1 months warranty. Therefore, before making a payment must be accountable to consumers ask about the battery business warranty period and conditions, do not forget to ask for an invoice to the merchant or the seal of the receipt, and let businesses indicate the battery warranty.
In the supply, the laptop battery on the market mainly from the official website of the brand notebooks and maintenance of points, laptops, and other merchants and online shops. The official website of the brand notebook batteries dell XPS M140 battery, dell XPS M1210 battery and maintenance of point of sale prices generally higher; computer notebook business in town cheaper than the official number, but the quality of services vary widely, there are many of the “Depot” was secretly “changing the core” phenomenon. Formal service center does not provide repair (ie, for core, activating, etc.) business. Recycling batteries will be centrally, there is no “Depot Maintenance” argument.
Therefore, comprehensive consideration, then we can consider buying the brand is compatible with the regular battery manufacturers. On the one hand and on the quality of original equipment batteries not very different; the other hand, informal enterprises are also more standardized after-sales service.