Many laptops have similar hardware configurations, but their battery life or performance vary greatly. In fact, the battery life of a laptop depends largely on the battery, while the actual performance is also affected by the power of the power adapter. To understand these two hardware, we need to start with their basic parameters.

Laptop Batteries

The battery life of a laptop is mainly affected by two aspects. First, the power consumption of the entire laptop hardware platform, including hardware units such as the screen, processor, graphics card, memory, hard disk and speakers.

Among them, the processor and graphics card are the biggest power consumers. The battery life of thin and light notebooks is generally more than three times that of gaming notebooks, because thin and light notebooks are equipped with low-power processors of 15W (TDP) and independent graphics cards with a maximum power consumption of no more than 25W. The processors and graphics cards of gaming notebooks generally start at 45W and 50W, and stronger performance will inevitably lead to more power consumption.

The second is the built-in battery capacity of the notebook. In order to be as slim as possible or reduce costs, some notebooks will choose to sacrifice battery capacity, which will lead to a sharp drop in their battery life.

In short, increasing battery capacity is the only way to extend the battery life of a laptop.

Currently, most laptop batteries use lithium polymer cells , which are a flat battery structure fixed in the laptop body by screws and cables.

If you take apart the back cover of the laptop and look carefully at the surface of the laptop battery, you will see countless certification and parameter information, such as the mAh capacity unit that we are most familiar with.

In the field of smart phones, "mAh" is the standard unit of battery. A phone with a built-in 5000mAh battery will definitely have a longer standby time than a 4000mAh phone. However, this common sense does not work in the field of laptops, because the operating voltage of laptop batteries is not uniform, and "Wh" is needed to measure the actual energy of the battery. The calculation formula of Wh is rated capacity × rated operating voltage.

For example, the rated capacity of the battery is 7410mAh and the rated operating voltage is 7.6V, so its actual energy is 7410mAh×7.6V, and the calculated result is 65.3Wh.

Laptop manufacturers usually indicate the energy parameters of the laptop battery in the specifications . When the configurations are similar, the larger the Wh number, the more guaranteed the laptop's battery life.

It should be noted that laptop batteries also have a safe operating temperature and humidity range, with the temperature mostly being between 0 degrees Celsius and 60 degrees Celsius. If the temperature is too low, problems such as failure to boot up or shortened battery life may occur, while if the temperature is too high, there will be serious safety hazards.

In addition, lithium batteries should not be squeezed, punctured or exposed to water, which can easily cause battery short circuits and lead to serious safety accidents such as explosions. Therefore, if the laptop battery is severely squeezed, collided, or the laptop is soaked in water, be sure to carefully check whether the battery is deformed or bulging, and contact the customer service center in time if there is any problem.

Power adapter

For a laptop to "full power output", the power adapter needs to provide sufficient and continuous stable power. The two most critical indicators on the surface nameplate of the power adapter are output voltage and output current. The multiplication of these two indicators can give the maximum output power it supports.

If you feel that the original power adapter is too big to carry around, you need to get a compatible adapter at home, school or work. When making sure the charging interfaces are the same, choose a model with the same output voltage and an output current equal to or greater than the original adapter.

Nowadays, many new thin and light notebooks support USB PD charging. You can use USB PD chargers that are compatible with mobile phones. When purchasing such chargers, try to buy models with a power of no less than 65W. This can better charge more high-end configurations. of thin and light laptops are provided with charging.

Through an in-depth analysis of the basic parameters of the battery and power adapter, it can be found that they have a significant impact on the battery life and performance of the laptop.

If this article still doesn't help your laptop battery, you can buy a new battery at  BatteryMall.com

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