Laptop battery have to say that the secret

Some time ago APPLE, DELL, SONY, HP and other internationally renowned PC giant laptop battery have all sorts of problems and recall the original? Today I would like to expand on the topic, talk about some of the knowledge of the laptop battery to share with you?
 
Notebook Inspiron 1545 battery why electricity consumption, the less? Why battery calibration feature makes the power to restore part? The battery is exactly how the charge was correct? Calculated by talking about all this power from the battery ......
Has been eliminated nickel metal hydride batteries now used in lithium ion batteries, or lithium polymer batteries, and even the stars of the future of the silver-zinc battery, the equivalent of a storage warehouse of electricity, the difference is that they are out of the library way, the storage capacity. Laptop battery, there is a large butler responsible for the management of these batteries - power computer chips, it is the HP EliteBook 8440p battery management, computing power, "responsible person" responsible for charging and discharging.

Measurement in battery technology, there are four common methods, but not a different brand laptop battery is only one of the methods to calculate the power, are often integrated several methods, one of the main methods of calculation. The rest of the supporting calculations to achieve the power calculation, management. The first one is the open circuit voltage measurements, this method is by measuring the battery voltage in the stationary state values ​​to calculate the remaining battery capacity, but due to the relationship between the voltage and remaining capacity in lithium-ion batteries still non-linear The measured value of this method is not accurate, the vast majority of mobile phone batteries have adopted this method of calculation; The second is called Coulomb calculation, the method is by measuring the Acer aspire 5738z battery charge and discharge current, the current value and time value calculated by the product of integrating the battery charge into the electricity and the release of electricity, Coulomb calculation method is a more accurate power calculation; third impedance measurement, it is the battery internal resistance by measuring the remaining battery capacity value; the fourth is a comprehensive look-up table method, the voltage, current, temperature and other parameters input to set a table, you can check the remaining battery capacity.

Therefore, the internal structure of the inspiron 5000 battery in addition to batteries, as well as management chip, the chip contains one to two measurement batteries power calculation method and a set of charge-discharge protection circuit. Laptop computers into the system to access the chip through the driver interface, and then set the battery management.

Well, the battery and why the more power consumption, the less, but perform a battery calibration feature can restore part of the capacity? The laptop battery for Dell Inspiron N4010  is generally the so-called 6-cell power, 4-pin power refers to the internal battery has several cell batteries. So many batteries together is the power the more the less the fundamental reason: the quality between the batteries and the batteries discharge level can not be exactly the same, such as discharge, one of the batteries charge a substantial reduction In order to maintain voltage stability, the battery management chip in accordance with the "bucket theory", in accordance with the worst power-saving core charge protection, after charging power will naturally decline, the impact is even more than the battery irreversible chemical physics changed.

Battery calibration function is to balance the multi-cell battery because of their internal resistance can not be completely consistent with the internal resistance of the sony vaio vgn-fz440e battery will assume a greater current, resulting in consumption greater than other batteries, but also easier to wear and tear, so The regular battery calibration is necessary - multi-section can be balanced so the battery burden of work, thus extending the overall life expectancy.