Laptop Batteries

Laptop Batteries
Use rechargeable batteries Laptop Battery for notebook computers, one of the relative advantages of the desktop, it can greatly facilitate a variety of environments the use of notebook computers. Introduced the first battery is nickel-cadmium batteries (NiCd), but this battery has a "memory effect", each charge shall be required before discharge, very easy to use, and soon was nickel-metal hydride battery (NiMH) replaced, NiMH not only failed to "memory effect", but can make more per unit weight of 10% of the electricity. The most commonly used battery is lithium-ion battery (Li-Ion), it is also no "memory effect", as compared with the NiMH per unit weight gain more power, the price twice as high than the NiMH. In the same weight, this three kinds battery is 1:1.2:1.9 ratio. There is also a battery-called polymer, a very high capacity, small size, most used in Apple Computer.

Notebook computer batteries currently used in three kinds of main categories: 1. Nickel-chromium batteries, 2. Ni-MH 1691P battery, 3. Lithium battery; they are generally expressed as: Ni-Cd NI-CD, Ni-MH NI-MH, Lithium-Ion battery LI.

The purchase or replace the battery when the laptop for many users, the "batteries" may be unfamiliar. The outset, batteries and battery are two concepts. A battery is composed of several slightly larger than the thumb, cylindrical, height of about 7,8 cm, voltage is 3.6v of small units, a professional name for that is called 18650, Sanyo and Samsung is the largest producer. Batteries , like a small battery, through the series combination, that is, we see the battery has. Then talk about how to determine if the 75UYF battery is several cores:

One way: Disconnect the battery to the number of contacts to see him, there are a few of the tens of cores. But this is a "minister" approach. Let's take a look at "Cao Chong" is how, "said the elephant": the look of your battery nominal number of v, such as 14.4v, and then divided by 3.6 to be 4, then proved to be four batteries together in series. And then take a look at the capacity of the battery block, for example 4400mAh, then prove that the above mentioned two sets of batteries in series, because the small battery capacity is 2000-2200mAh, or even more, and together the two groups can be achieved must be 4400mAh. According to these 5081P two judgments, then the battery is 4 × 2 = 8 cores.

The composition of laptop battery

Laptop battery from shell, circuit boards and batteries, belonging to lithium-ion battery. People are talking about batteries in general refers to the number of batteries within the battery, mAh refers to the laptop battery capacity.

Mainly by the protection circuit board Inspiron 700m (or the secondary protection circuit), and the capacity of directed circuits of two parts, notebook battery charge and discharge and safety management.

Laptop battery standby time mainly by the mAh value to decide. Under normal circumstances, a few more batteries, mAh value is greater the longer standby time. Laptop battery life mainly by the charge and discharge times to measure the quality of the products are generally eligible for 500-600 times. Therefore, the effective use of laptop batteries within a period of two years, expired the battery will be aging, standby time Inspiron 710m affect the sharp decline in the mobility of notebook computers.