Accessing Battery Information with VBscript?

[XaRen]

Hello everyone,

I am totally new to visual basic script and I am not sure if I will need it for more than my current problem. I need a simple VBScript to check the remaining power in a notebook battery and save the percentage into a text-file. This script is executed from another programm on load.

I am already able to create a text file. I searched the web the last two days and found a lot of visual basic code but when I tried to run this in my VBScript I got a lot of errors. I narrowed down retrieving the battery information to the following code lines:

Dim psBattery As SystemInformation = SystemInformation.PowerStatus
Dim perFull As String = psBattery.BatteryLifePercent

BUT it is not working. I think it is the declaration with "As" that's causing the problem. Or am I doing this in a totally wrong way?

Can anyone help me with that? That would be great!

Thanks in advance,
Christine

 

[mrmovie]

Win32_Battery WMI class?

 

[XaRen]

Thanks for your really detailed answer

I don't know what to do with it. Could you explain it to me, please?

Thanks,
Christine

 

[mrmovie]

well, its a WMI class allows you to access certain properties and methods of the battery in a computer? a little google on Win32_Battery class yields the below, this might help you?

'On Error Resume Next
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * from Win32_Battery",,48)
For Each objItem in colItems
Wscript.Echo "Availability: " & objItem.Availability
Wscript.Echo "BatteryRechargeTime: " & objItem.BatteryRechargeTime
Wscript.Echo "BatteryStatus: " & objItem.BatteryStatus
Wscript.Echo "Caption: " & objItem.Caption
Wscript.Echo "Chemistry: " & objItem.Chemistry
Wscript.Echo "ConfigManagerErrorCode: " & objItem.ConfigManagerErrorCode
Wscript.Echo "ConfigManagerUserConfig: " & objItem.ConfigManagerUserConfig
Wscript.Echo "CreationClassName: " & objItem.CreationClassName
Wscript.Echo "Description: " & objItem.Description
Wscript.Echo "DesignCapacity: " & objItem.DesignCapacity
Wscript.Echo "DesignVoltage: " & objItem.DesignVoltage
Wscript.Echo "DeviceID: " & objItem.DeviceID
Wscript.Echo "ErrorCleared: " & objItem.ErrorCleared
Wscript.Echo "ErrorDescription: " & objItem.ErrorDescription
Wscript.Echo "EstimatedChargeRemaining: " & objItem.EstimatedChargeRemaining
Wscript.Echo "EstimatedRunTime: " & objItem.EstimatedRunTime
Wscript.Echo "ExpectedBatteryLife: " & objItem.ExpectedBatteryLife
Wscript.Echo "ExpectedLife: " & objItem.ExpectedLife
Wscript.Echo "FullChargeCapacity: " & objItem.FullChargeCapacity
Wscript.Echo "InstallDate: " & objItem.InstallDate
Wscript.Echo "LastErrorCode: " & objItem.LastErrorCode
Wscript.Echo "MaxRechargeTime: " & objItem.MaxRechargeTime
Wscript.Echo "Name: " & objItem.Name
Wscript.Echo "PNPDeviceID: " & objItem.PNPDeviceID
Wscript.Echo "PowerManagementCapabilities: " & objItem.PowerManagementCapabilities
Wscript.Echo "PowerManagementSupported: " & objItem.PowerManagementSupported
Wscript.Echo "SmartBatteryVersion: " & objItem.SmartBatteryVersion
Wscript.Echo "Status: " & objItem.Status
Wscript.Echo "StatusInfo: " & objItem.StatusInfo
Wscript.Echo "SystemCreationClassName: " & objItem.SystemCreationClassName
Wscript.Echo "SystemName: " & objItem.SystemName
Wscript.Echo "TimeOnBattery: " & objItem.TimeOnBattery
Wscript.Echo "TimeToFullCharge: " & objItem.TimeToFullCharge
Next

 

[XaRen]

I was able to access the battery information using the win32_battery class. Thanks again for that. I was also able to write the received information into a text file. Unfortunately the windows explorer pops up, when there is no text file during creation. Is it possible to prevent that? I don't want my user to know, that I create this file. I need it, to read it with a flash asset, so there's no use for the user to know about this file.

Can anyone help me with that? Thanks a lot in advance,
Christine

 

[jges]

Here's code similar to what I use to write to text files, no explorer pops up.

Set objFSO = CreateObject("Scripting.FileSystemObject")

	Set NewFile = objFSO.CreateTextFile("C:\temp\textfile.txt", True)
	NewFile.WriteLine("Line 1 added to a text file")
	NewFile.WriteLine("Line 2 added to a text file")
	NewFile.Close