The following discussion presents the details of these methods and describes their Windows-specific requirements. Windows 7 drivers help needed. Every mobile Windows platform must have one power source device and one or more batteries. If you have a question, please create a new topic by clicking here. Let’s hope it works.

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Must be set to 0x0. Each battery device must do all of the following: Design capacity of Low Indicates the critical battery level at which Windows must immediately shut down pp0c0a hibernate before the system powers off. Must be set to the design voltage of the battery when new in millivolts.

Message 1 of This thread is locked. This includes any change in the Battery State field for the charging bit Bit0 or discharging bit Bit1. Measurement accuracy Indicates the accuracy of the battery capacity measurement. Cycle count Indicates the battery cycle count.

ACPI\PNP0C0A\1 Drivers Download

Tech support scams are an industry-wide issue where scammers attempt to trick you into paying for unnecessary technical support services. Message 10 of Information from these subsystems is used to convey power status to the user.


Must be set to a value larger than 0x0. You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer accpi number. Must be set to a value between 0 and 5 percent of the battery design capacity.

Return value s Package containing a single integer. Sorry this didn’t help.

Here is HP’s battery care guide link, which will help you to get the most out of your notebook’s battery. Battery capacity granularity 2 Indicates the minimum amount of remaining charge change that can be detected by the hardware between Last Full Charge Capacity and Design Capacity of Warning.

ACPI battery and power subsystem firmware implementation

Additional power source objects may be present on server systems that have multiple power supplies. We recommend that this value be updated only when the battery reaches full charge.

This value must remain constant when the battery is discharging. All other values are ignored and are treated as 0x0 and watchdog resetting is not required. Each battery, together with its current status, is listed in the UI.


Download Microsoft ACPI-Compliant Control Method Battery

You can follow the question or vote as helpful, but you cannot reply to this thread. Did this solve your problem? Battery remaining capacity Provides the remaining battery capacity in milliwatt-hours. Every mobile Windows platform must have one power source device and one or more batteries. This topic details how the platform should expose power subsystem information to the Windows power manager.

This method returns the status of the power source and conveys whether the power source is currently online Acpu power or offline on battery power. We recommend that this only be updated when the battery reaches full charge. I have the same question. Windows assumes that this value pn0c0a updated only when the battery has been charged.

Must not be NULL. Battery type OEM-provided battery type information. Revision ID 0 First revision of this capability.