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BATTERY_WMI_STATIC_DATA structure (batclass.h)

  • Article

Defines static data about a battery.

Syntax

typedef struct _BATTERY_WMI_STATIC_DATA {
  ULONG                   Tag;
  WCHAR                   ManufactureDate[25];
  BATTERY_REPORTING_SCALE Granularity[4];
  ULONG                   Capabilities;
  UCHAR                   Technology;
  ULONG                   Chemistry;
  ULONG                   DesignedCapacity;
  ULONG                   DefaultAlert1;
  ULONG                   DefaultAlert2;
  ULONG                   CriticalBias;
  WCHAR                   Strings[1];
} BATTERY_WMI_STATIC_DATA, *PBATTERY_WMI_STATIC_DATA;

Members

Tag

A tag that identifies a specific battery.

ManufactureDate[25]

A BATTERY_MANUFACTURE_DATE structure that specifies the date that the battery was manufactured.

Granularity[4]

Specifies the granularity as a BATTERY_REPORTING_SCALE value.

Capabilities

Battery capabilities as a ULONG value encoded with one or more of the following flags:

Technology

Specify zero for a primary, nonrechargeable battery, or one for a secondary, rechargeable battery.

Chemistry

A four-character string indicating the type of chemistry used in the battery. Possible values include "PbAc" (Lead Acid), "LION" (Lithium Ion), "NiCd" (Nickel Cadmium), "NiMH" (Nickel Metal Hydride), "NiZn" (Nickel Zinc), and "RAM" (Rechargeable Alkaline-Manganese). Additional values might be returned as additional battery types become available.

DesignedCapacity

The theoretical capacity of the battery when new, in milliwatt-hours. If BATTERY_CAPACITY_RELATIVE is set, the units are undefined.

DefaultAlert1

The capacity, in milliwatt-hours, at which a low battery alert should occur.

DefaultAlert2

The capacity, in milliwatt-hours, at which a warning battery alert should occur.

CriticalBias

Specify the amount, in milliwatt-hours, of any small reserved charge that remains when the critical battery level shows zero. Miniclass drivers should subtract this value from the battery's FullChargedCapacity and remaining capacity, which is reported in BATTERY_STATUS, before reporting those values.

Strings[1]

Four variable length string values are stored with the first USHORT value containing the length of the string in bytes.

Requirements

Requirement Value
Header batclass.h (include Batclass.h)

See also

BATTERY_MANUFACTURE_DATE