Laptop batteries used mainly three: 1. Nickel-cadmium batteries, nickel-metal hydride batteries, 3. Lithium batteries; they are generally expressed as: nickel-cadmium NI-CD, Ni-MH NI-MH, lithium battery LI. Purchase or replace the Dell Precision M6600 Battery, for many users, the batteries may be unfamiliar. The outset, batteries and Dell Studio 1745 Battery are two concepts. A battery is a slightly larger number than your thumb, cylindrical, about 7,8 cm high, the voltage is 3.6v small units, a professional, it is called is called 18650, Sanyo and Samsung is the largest manufacturer of batteries, like a small Dell Latitude E6430 Battery, after a series combination, we see the Dell Inspiron N5010 Battery. Then talk about how to determine if the battery is a few core: one way: look at his contacts in the battery unplug number, is a few core. However, this is a “minister” of the way. We take a look at how “Cao Chong said like: take a look at how much your battery nominal v, such as 14.4v, then divided by 3.6 to get 4, 4 cells in series with. Then take a look at the piece of the battery’s capacity, for example, 4400mAh, then prove that there are two sets of the above mentioned series battery, because those small battery capacity of 2000-2200mAh, or more, must be two groups together in order to achieve 4400mAh. According to these two judgments, the battery is 4 × 2 = 8 core. Edit this paragraph constitute laptop battery notebook battery casing, batteries, belonging to lithium-ion battery. The batteries generally they say refers to the number of batteries within the battery, mAh refers to the capacity of the laptop battery. Laptop battery standby time is determined mainly by the mAh value. More normal circumstances, CellQTY mAh larger the value, the longer standby time. Laptop battery life is measured primarily by the charge and discharge times, the quality of qualified products generally 500-600 times. Therefore, the useful life of the Dell XPS M1730 Battery for less than 2 years, the the expired battery will be aging, standby time sharp decline affected the mobility of the laptop.