Battery Information C# Problem

I have a problem with the battery information extraction in C #.
I have this working information from SystemInformation.PowerStatus and
SELECT from CIM_Battery class:
-BatteryChargeStatus
-BatteryFullLifetime
-BatteryLifePercent
-BatteryLifeRemaining
-PowerLineStatus
-Availability
-BatteryStatus
-Chemistry
-DesignVoltage
-DeviceID

Looking for:

-design capacity
-full charge capacity
-current capacity
-alert level
-critical bias
-charge rate

Where should I look for the rest of the information?

Have you looked at Win32_Battery class?