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02-17-2017 01:43 PM
I have found an issue on ProBook 650 G1 and ProBook 11 EE G1 that are providing incorrect battery information in/to WMI.
I have two scripts (which both work on Dell laptops) to quesy for the designed capacity of the battery and the current full charged capacity which I've used with Dell laptops and SCCM to report when the batteries beging to fail or their full capacity falls under 30% of the design capacity. The powershell scripts:
1. (Get-WmiObject -Class "BatteryStaticData" -Namespace "ROOT\WMI").DesignedCapacity
2. (Get-WmiObject -Class "BatteryFullChargedCapacity" -Namespace "ROOT\WMI").FullChargedCapacity
On the models I mentioned both return the exact same value which turns out to be the full charged capacity. Both were returning a value of under 4000 milliwatts and the design capacity is north of 56000. Running a powercfg battery report and looking at the tracker as the battery degrades shows the FullChargedCapacity and DesignedCapacity diminishing with the same values where only FullChargedCapacity should be.
As I have no idea where else this could be posted or how to submit such a bug I'm curious is anyone else has noticed this and, ideally, how to access a proper design charge?
02-17-2017 02:40 PM - edited 02-17-2017 02:49 PM
BattMon reports the same information as I'm seeing with my WMI queries (I'm guessing BattMon does nothing more than read those same WMI queries anyway?).
With the various batteries I have available BattMon lists the same value for Design Capacity and Full Charge Capacity (naturally different batteries have different values but both capacities read as the same).
02-17-2017 05:08 PM - edited 02-17-2017 05:15 PM
Are you using the original SMART AC adapter and the original battery???
The other laptops do they use SMART AC adapters???
P.S. Your latest BIOS version is 01.39 Rev.A(5 Oct 2016)
But does not show your problem in any of the fixes.