Laptop battery maintenance problems

08/15/2013 15:18

Laptop battery maintenance problems

HP Pavilion dm4 Battery in notebook computers is also a serious consumption of parts, battery over a period of time, power will gradually shorten the time until it can not be used. So it comes to laptop battery maintenance and rational use issues are also frequently discussed topic. But some users some of the maintenance of understanding is wrong, the following has done something to explain.
A nickel-metal hydride battery
Compared to lithium HP Pavilion DV7 Battery, nickel metal hydride batteries can not escape the inherent disadvantage. First, the memory effect: NiMH batteries and nickel-cadmium batteries have the same memory effect, but much milder, but still must be depleted before they can charge. The lithium battery no memory effect, you can not ignore how much residual power, direct charging. Disadvantage two are self discharge rate: Ni-MH battery is 25 to 35 percent a month, while the lithium battery is only 2 to 5% a month, so nickel-metal hydride battery drain quickly, require frequent recharging. NiMH batteries are now equipped models have basically not see, the universal application of a lithium-ion battery.
Second, the lithium battery
Lithium HP Pavilion DV6 Battery in a life cycle can generally be carried out between 300 and 500 times charging and discharging. So many people believe that if there is less battery, so that you can in a certain extent, played a role in extending battery life. But they ignore the lithium battery easy to aging nature.
Battery as a chemical element, a great influence on the work environment, due to oxidation reactions caused by the increase of the internal resistance of the battery is the main reason causing the battery loss. When the cell resistance reaches a certain point, although this time the battery can still be charged, but the battery has been unable to release the stored energy of the outward. This is why many users will complain that they fully charged battery in use suddenly no electricity. It may therefore be understood this problem, and that is when the lithium battery off the production end of the assembly line, it's life begins to move around the clock on its remaining life now is to assess the number of charge cycles.
Avoid frequent use of HP Pavilion DV4 Battery can be said to be one of the most fundamental way, but even most of you usually use an external power supply, does not seem to use the battery, but in fact, the battery aging process over time, has been engaged. The battery left unused, it can only be delayed to some extent, the loss rate of the battery only, but can not make it stop, usually in two to three years later on come to an end, therefore, no need to purchase spare lithium batteries for storage, so this is actually a waste of battery. In addition, if you always put aside without the battery, laptop mobile meaningful and talk about it? They still want to talk about the case in the use of maintenance problems.
Know thyself, know yourself. Lithium-ion HP Pavilion dv6000 Battery cathode materials are usually formed by the active compounds of lithium, the negative electrode is a special molecular structure of carbon. Common cathode material mainly composed of LiCoO2, charging, added to the battery positive pole of the electric potential to force the release of lithium-ion compounds, embedded negative elements arranged in lamellar structure of carbon. Discharge, the lithium ions from the lamellar structure of carbon precipitation and re-cathode combination of compounds. Movement of lithium ions generated current.
Chemical reaction principle, although very simple, but in the actual industrial production, the need to consider much more practical problems: a positive electrode material additives required to maintain multiple charge and discharge activity, the negative electrode material needs to design the molecular structure level to accommodate more lithium-ion; filled in the positive electrolyte between the anode, in addition to maintaining stability, but also need to have good electrical conductivity, reducing the battery internal resistance.