Repeatedly charge and discharge deeply: the misunderstanding of laptop battery
The article posted by http://www.battery-base.com

Some users said: “the depth with repeated charge and discharge method,Hp laptop battery you can restore the performance of the DELL laptop battery, HP 346970-001 Battery, HP HSTNN-DB02 Battery, HP HSTNN-UB02 Battery, HP DP390A Battery,thereby extending battery life,” I think this to be relatively one-sided.

Notebook computers equipped with original equipment batteries, after a period of time after use, there will inevitably be of standby time.

As you know, before 1995 the production of notebook computers are basically nickel-cadmium batteries to power. The battery is in use, if the charge-discharge method is not correct, the battery will have a “memory effect”, thereby reducing the battery’s actual capacity to eliminate this “memory effect” is used repeatedly in the best way to charge and discharge depth way. With the emergence of nickel-metal hydride batteries, battery capacity has significantly improved,HP 346970-001 Battery, but the “memory effect” did not completely eliminate the shortcomings Dell 1X793 battery, Dell 1691P battery.

In recent years, lithium-ion batteries in notebook computers has been rapidly growing popularity, due to lithium-ion batteries have basically eliminated the “memory effect” problem, it is used repeatedly to restore the battery depth of charge and discharge performance of the method no longer applies. However, lithium-ion batteries why it still appear to reduce the capacity of the problem? HP 346970-001 Battery, HP HSTNN-DB02 Battery, HP HSTNN-UB02 Battery, HP DP390A Battery,The root causes of that situation, is used in notebook computers and the original lithium-ion battery built-in battery management system in the making.

Lithium-ion battery charging process of the whole, divided into “fast charge constant-current” and “constant-voltage charging current decreasing,”HP HSTNN-DB02 Battery, two phases. The so-called “constant-current fast-charge” means a charge has just begun when the charge current is fixed and the charge voltage to follow the battery terminal voltage gradually increased until it reaches the nominal voltage charging. When the battery terminal voltage has reached the standard value, the control chip will be automatically transferred to the “Constant current charge decreasing” phase, this time charging voltage will no longer continue to rise, while the charge current is to follow the battery capacity is rising gradually decreasing and finally reached zero, and so will complete the entire battery charging process.

After repeated charging and discharging the battery after use, its built-in chip in the charging and discharging of data will of course change. If at this time “battery management chip” has no chance to re-read the newer, more complete data, it calculated battery capacity would of course not accurate,HP HSTNN-UB02 Battery, and to the user the impression that the battery capacity has decreased, but the reality on the battery capacity and there is no real reduction in the actual. Some brands of notebook computers comes with charging management software works, that is, the process of charging Refresh “charge-discharge control chip” in memory of the data, thus ensuring the “battery management chips,” the correctness of calculations.

If you take a close look over the use of laptop computers instructions, you will find among them the “computer in use one month later, the battery should be to make a full charge and discharge operation” instructions. HP 346970-001 Battery, HP HSTNN-DB02 Battery, HP HSTNN-UB02 Battery, HP DP390A Battery,Its main purpose is to use the depth of charge and discharge a way to modify the charge and discharge control chip registers inside the curve data, so that the battery charge control and the nominal capacity and the actual situation of the battery corresponds to arrive at the correct battery capacity values HP DP390A Battery,