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Laptop Battery Report Shows a Difference Between the "Battery Design" and "Full Charge" Capacity

Resumen: This article explains why there is a disparity between the battery design capacity of the battery and the full charge on a Dell laptop.

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Síntomas

When looking at the Battery Report utility, you will see that there is a difference in the battery design capacity versus the full charge capacity shown.

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(Figure.1 XPS Battery Report)

Causa

Cause information is not available.

Resolución

This disparity can lead people to falsely assume that there is a problem with their laptop battery.

  • Full Charge Capacity: This is affected by several factors that are constantly changing. (For example, changes in the external temperature, ambient temperature, system heat soak temperature, along with things such as the number of discharges to 0% and the number of full charge cycles.)

  • Design Capacity: Has a 10% buffer to allow for external changes during use. (For example, system heat can cause a cell to overvolt ever so slightly.) This prevents the battery from spiking and causing damage to the life of the battery cells.

This is standard industry design and practice and the battery is working as designed.

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Productos afectados

G Series, Alienware, Inspiron, Latitude, Vostro, XPS, Legacy Laptop Models, Mobile Workstations
Propiedades del artículo
Número del artículo: 000138286
Tipo de artículo: Solution
Última modificación: 17 oct 2024
Versión:  6
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