Analysis of the service life of laptop batteries

Introduction to laptop batteries Everyone knows that as a consumer product, laptop batteries last a long time. Therefore, an important factor in choosing a laptop is to see whether your beloved laptop battery is easy to use. So how to choose a laptop battery? It should also start with the basics of laptop batteries (I hope everyone can keep reading, albeit in a very dogmatic way). Currently, laptop computers have three types of batteries: one is nickel-chromium batteries; two nickel-metal hydride batteries; and three lithium batteries; they are usually expressed as nickel-cadmium nickel-cadmium nickel metal hydride lithium batteries. The laptop battery pack includes a shell circuit board and a lithium battery. Generally speaking, the battery unit refers to the number of units of the battery, and the mAh refers to the capacity of the notebook battery. The circuit board is mainly composed of a maintenance circuit (or secondary maintenance circuit) and a capacitance indicating circuit, and is used for charging and discharging and safety of notebook batteries. The standby time of the laptop battery depends importantly on the milliampere value. Generally speaking, the more units, the greater the mA value, and the longer the standby time. The life of a laptop battery depends on the number of charging and discharging. The quality of the product is generally 500-600 times. Therefore, the effective life of the laptop battery is less than 2 years, the battery will age after expiration, and the standby time will drop sharply, which will affect the mobility of the laptop. When buying a laptop, consumers usually see a parameter list and price list. At the same time, there are only one or two parameters for laptop batteries. In other words, it is a lithium battery and several centers. Tell us that the most common one on the market now is the six-cell ion battery. In high-function mode, the battery life is generally up to 2 hours (except for BT notebooks). Know the common and how to check the battery parameters. On laptop batteries, you can often see 4400 mAh 2200mAh and other digital nominal batteries. I still say that mAh is the key to determining battery life. So there must be many friends who think Malaysia is better. but it is not the truth. The unit that really knows the battery capacity should be considered Wh, and the name in the middle is Wahshi. Of course, Wh and mAh are closely related to the following formula: Whu0026pide;V×1000u003dmAh. It should be pointed out that the power unit of the measuring instrument itself should be power, that is, watts. The important parameters of the battery are composed of voltage mAh and watt-hour. Since then, we have been able to understand that when choosing a laptop battery, the local consideration is not milliampere-hours, but Wh and voltage. The author found an example of this on the Internet. For example, the same 4800mAh lithium battery has different endurance under different voltages of 10.8v and 11.1v, and this difference is caused by its difference in Wh. It can be obtained by calculation: 4800 now 1000*10.8u003d51.84(WH) 4800 now 1000*11.1u003d53.28(WH) It can be clearly seen that the 4800mAh11.1v lithium battery has advantages in terms of battery life. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the advantages of secondary lithium batteries?