What is the average capacity of a laptop battery in milliamps?

What is the general battery capacity of a laptop computer and a gaming notebook like Alienware?

In terms of appearance design, it is a brand new 14-inch mold, as thin as 1 5mm, and the body has a maximum of 11 hours Local video playback, 80Whr large-capacity battery comes standard with 130W.

Up to 11 hours of local video playback, 80Whr large-capacity battery. The 14-inch monitor with a 144Hz refresh rate also has hardware-level anti-blue light technology.

Hello, the notebook battery capacity is generally 4400mAh. Laptop lithium-ion batteries have a design capacity. This data can be seen on the battery label. Some are expressed in "milliamp hours (mAh)", such as "4400mAh", and some are expressed in "watt hours". , such as "23Wh".

Generally speaking, the battery life is best to exceed 3 hours to meet the needs of daily mobile office. At present, the battery capacity of laptop computers is generally 3000 to 4500mAh, and there are very few equipped with 6000mAh capacity.

Laptop battery models are divided into four-cell, six-cell, nine-cell and twelve-cell. Usually, a 14- to 5-inch screen will use a six-cell battery with a capacity of 4,000 to 5,000 mAh. If it is a standalone graphics card, it can take about two hours to two and a half (general load), and a set graphics card can last half an hour.

Laptop battery capacity is generally 4400mAh. Laptop lithium-ion batteries have a design capacity. This data can be seen on the battery label. Some are expressed in "milliamp hours (mAh)", such as "4400mAh", and some are expressed in "watt hours". , such as "23Wh".

Battery parameters of laptop battery

1. The 18650 battery cell used in laptops usually has a capacity of 2200mAh (milliamp hours), which can be interpreted as: powered by 7V voltage and 2200mA current, it can be used 1 hour. There are also ones marked 8V, that is, a voltage drop occurs in a single cell, resulting in a reduction in the total voltage. Most of the popular netbooks on the market now have battery packs with this specification.

2. The discharge voltage of standard 18650 lithium battery is between 6V-7V, 86=3, 3 in series. The total capacity is 48Wh=8*4*m, m=1. So this is a 3-cell lithium battery connected in series. Note: Cells can be connected in series or in parallel, the voltage in series is accumulated, and the current in parallel is accumulated.

3. Laptop batteries mainly use 18650 specifications, which means the battery length is 65mm and the diameter is 18mm. This type of battery is widely used in laptop batteries. Of course, some laptop batteries are affected by their shape and size. other types of battery cells are used due to constraints.

What is the normal fully charged capacity of a notebook?

The fully charged capacity of a Lenovo notebook is 61150. The factory design capacity of 61000 is abnormal. From the moment a lithium battery is produced, its capacity is slowly decreasing. This is determined by its physical characteristics. The design capacity is a theoretical value, and the actual capacity will be less due to various factors such as chemical reactions of ions. .

normal. It is normal for a battery to lose around 20% in a year. If maintained well, the loss can even be less than 10%. For some laptop batteries that have been used for a long time, battery loss is inevitable, and the loss rate is as high as 30-40%, which directly affects the endurance of the battery.

The fully charged capacity of a laptop should refer to the electrical energy contained in the laptop battery when it is fully charged. This electrical energy is generally measured in milliamp hours. The battery capacity of laptop computers is actually not high, compared to some tablet computers, it is 3P.

This is only about 0.2% larger, which is normal. First of all, this will be updated after each charge and discharge, and each update will fluctuate around plus or minus 3%.

Generally it is about 30 watts, the total power consumed is about 60 watts, and the maximum power will not exceed 100 watts. If an ordinary notebook uses a battery, a better one can last for two to three hours, and an ordinary notebook can only last more than an hour. After two years of use, it will be good if it can be used for dozens of minutes.

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