systeminformation: Missing battery DesignCapacity and FullChargeCapacity in Windows

Sorry @sebhildebrandt for another battery related issue. It’s not like I’m looking for them 🙂

Issue:

On my Dell XPS 15 I don’t get DesignCapacity and FullChargeCapacity. One of my clients also doesn’t have those on his newer XPS 13 as well.

My wmic:

BatteryStatus=1
DesignCapacity=
DesignVoltage=11667
EstimatedChargeRemaining=80
FullChargeCapacity=

Possible solution:

After some research the solution that worked for me was to use PowerShell-only class to get those data:

PS C:\Users\Alex\systeminformation> (Get-WmiObject -Class BatteryStaticData -Namespace ROOT/WMI).DesignedCapacity            
83995
PS C:\Users\Alex\systeminformation> (Get-WmiObject -Class BatteryFullChargedCapacity -Namespace ROOT/WMI).FullChargedCapacity
44232

I’m not sure how much backward compatible is this but I used those as a fallback if no data is available from wmic and it works correctly:

exec('(Get-WmiObject -Class BatteryStaticData -Namespace ROOT/\WMI).DesignedCapacity', {'shell':'powershell.exe'})
exec('(Get-WmiObject -Class BatteryFullChargedCapacity -Namespace ROOT/\WMI).FullChargedCapacity' {'shell':'powershell.exe'}),

Environment (please complete the following information): systeminformation package version: 5.6.21 OS: Windows 10 Hardware: Dell XPS 15 9550