Identifying the device category using the Win32_Battery WMI class.

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Identifying the device category using the Win32_Battery WMI class. 

The objective of the article is to utilize specific WMI classes to ascertain whether the examined device falls under the category of a laptop or desktop. To achieve this, we will make use of the Win32_Battery WMI class, which signifies a connected battery within the computer system.

what is WMI?

Windows Management Instrumentation



Windows Management Instrumentation (WMI) is a management infrastructure provided by Microsoft in the Windows operating system. It allows administrators and developers to access and manipulate management information and resources in a Windows environment.


WMI provides a standardized way to interact with various aspects of a Windows system, including hardware, software, processes, configuration settings, and more. It exposes a set of classes, properties, and methods that can be queried and modified to retrieve information or perform management tasks.


WMI can be accessed through various programming languages, including C#, PowerShell, VBScript, and Python, using the appropriate APIs and libraries provided by Microsoft. It provides a powerful and flexible way to manage and monitor Windows systems in both local and remote scenarios.

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Some notebooks use more than one battery and return more than one instance. Systems without a battery yield no instances, which may indicate and give us a greater chance of understanding the target as a desktop and not a laptop


SYNTAX:

[Dynamic, Provider("CIMWin32"), UUID("{8502C4B9-5FBB-11D2-AAC1-006008C78BC7}"), AMENDMENT]
class Win32_Battery : CIM_Battery
{
uint16 Availability;
uint32 BatteryRechargeTime;
uint16 BatteryStatus;
string Caption;
uint16 Chemistry;
uint32 ConfigManagerErrorCode;
boolean ConfigManagerUserConfig;
string CreationClassName;
string Description;
uint32 DesignCapacity;
uint64 DesignVoltage;
string DeviceID;
boolean ErrorCleared;
string ErrorDescription;
uint16 EstimatedChargeRemaining;
uint32 EstimatedRunTime;
uint32 ExpectedBatteryLife;
uint32 ExpectedLife;
uint32 FullChargeCapacity;
datetime InstallDate;
uint32 LastErrorCode;
uint32 MaxRechargeTime;
string Name;
string PNPDeviceID;
uint16 PowerManagementCapabilities[];
boolean PowerManagementSupported;
string SmartBatteryVersion;
string Status;
uint16 StatusInfo;
string SystemCreationClassName;
string SystemName;
uint32 TimeOnBattery;
uint32 TimeToFullCharge;
};

The Win32_Battery class has the following properties:

  • Availability
  • BatteryRechargeTime
  • BatteryStatus
  • Caption
  • Chemistry
  • ConfigManagerErrorCode
  • ConfigManagerUserConfig
  • CreationClassName
  • Description
  • DesignCapacity
  • DesignVoltage
  • DeviceID
  • ErrorCleared
  • ErrorDescription
  • EstimatedChargeRemaining
  • EstimatedRunTime
  • ExpectedBatteryLife
  • ExpectedLife
  • FullChargeCapacity
  • InstallDate
  • LastErrorCode
  • MaxRechargeTime
  • Name
  • PNPDeviceID
  • PowerManagementCapabilities
  • PowerManagementSupported
  • SmartBatteryVersion
  • Status
  • StatusInfo
  • SystemCreationClassName
  • SystemName

Each of these properties contains a specific piece of battery-related information that can be queried using the WMI API.

power Shell Command to WMI class


OUTPUT:




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