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Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
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release time:2024-03-04 Hits: Popular:AG11 battery
Electronic enthusiasts provide you with an in-depth explanation of notebook long-lasting battery technology. We can’t help but exclaim: notebook batteries wear out too quickly. If your only purpose of buying a laptop is to work on the go, then you have to spend more than 1,000 yuan to buy an original battery.
The purpose of many users buying notebooks is to work on the go. Mobility includes two elements: one is portability, and the other is high battery life. In terms of portability, major manufacturers have spent a lot of money to reduce the weight of notebooks as much as possible in many aspects. In terms of battery life, low-power accessories such as low-voltage processors and LED screens effectively reduce the power consumption of the entire machine and improve battery life.
There is no shortage of laptops with high battery life on the market. However, many business people still complain that their laptops always have insufficient battery life. Even if they purchase high-battery laptops, their battery life will drop from 10 to 100 hp in less than two months. 6 hours reduced to 3 hours.
The problem before us is that when we first bought it, the battery life was indeed very long, but after a year of use, the battery life will be greatly reduced or even only last for half an hour. "What's the use of buying a notebook that can't maintain its advantages?" Looking at the notebook market, this is true for all notebook computers.
Because battery technology has stagnated for many years. The capacity is sufficient, but the shortcoming of rapid loss has not been improved.
We couldn’t help but exclaim: laptop batteries wear out too quickly. If your only purpose of buying a laptop is to work on the go, then you have to spend more than 1,000 yuan to buy an original battery. After three years, the laptop hasn't broken down yet and the batteries have been replaced. This price is enough to buy a mid- to low-end laptop.
Inside a traditional laptop battery
Traditional laptop batteries are composed of lithium battery cells, control circuits, charge and discharge circuits, casings and other parts. There are many reasons why the battery capacity is depleted too quickly. A lot of this is due to the inherent shortcomings of this type of battery.
Batteries
The loss of this type of battery is divided into two types, one is the physical loss of the battery core, which is the loss of the lithium battery; the other is the overall loss of the battery, which is the loss that we can view with the software. The two types of losses are related, but not entirely consistent.
Everyone knows that there is a protection chip in the battery. The main function of this protection chip is to ensure that the battery core will not be overcharged or overdischarged. Overcharging will cause the battery core to overheat and accelerate loss; overdischarge will cause the reversible chemical reaction inside the battery core to fail. The more severe the overdischarge, the greater the failure rate.
In order to achieve the purpose of not overcharging and over-discharging, the designer will configure a monitoring program on the chip. This program will always run and record the battery's charge and discharge data, including battery voltage and charge and discharge current.
When discharging, the recorded voltage and current data will be converted into actual measured power. When the battery voltage is close to the low limit, the monitoring program will consider that the battery energy is exhausted and compare the maximum capacity with the measured capacity. If the measured capacity is less than the maximum capacity, then The monitoring program will lower the maximum capacity to avoid overcharging.
Because when charging, the chip does not know whether it is fully charged. The principle of over-discharge is similar, and the specific reduction range depends on the manufacturer's settings.
The main purpose of this design is to take care of the physical loss of the battery core. Because there are multiple cells in the battery, the quality of the cells may be good or bad. When the cells with poor health begin to age, the cells with good health that are connected in series and parallel must also reduce their capacity, and the overall capacity will be doubled. Decrease, this is the overall loss of the battery. If the maximum capacity is not adjusted along with the worst cell, it is very likely that the poor cell will be over-discharged during the discharge process, causing the entire battery to be completely scrapped.
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