How to display battery discharge rate in watts, Windows 8 + perfmon

Windows 'perfmon' utility allows to display graphs for different counters. One of them is Battery -> "Discharge rate" that can be spotted in the internet as a good way to examine battery discharge. I have tried to use it on 2 different laptops running Windows 8, but was surprised that it always shows "1.0" as it's value, not an amount of watts used by laptop as illustrated in many screenshots in internet :(. Is it any way to make it display watts or it's broken/not intended to be used on windows 8/all my laptops don't report battery discharge rate to windows?

Both laptops also running BatteryBar PRO that display discharge rate in watts perfectly well.

Updated

To clarify the things: I need discharge graph, not a current discharge value (BatteryBar displays current value without any problems).

Solution 1:

You may be able to use HWiNFO in conjunction with its GenericLogViewer (guide here) addon. HWiNFO should be able to collect discharge rates in its sensor mode, and GenericLogViewer includes graphing.

^{Click for full size Image takenfrom the user guide}

I currently do not have a Windows laptop available, so I am unable to test. I do remember that HWiNFO definitely does show CPU power draw, and vaguely recall the same for the battery. I'll test as soon as possible.

Solution 2:

In windows 8 you can Use Command Prompt to achieve this :

1.Navigate to Command Prompt

2.Type powercfg /batteryreport

3.Under Recent Usage Section you could find the detailed report

4.At battery usage Section you could find the graph

Hope it helps

Solution 3:

You can use HWMonitor for that. It not only shows the total charge of your battery and its wear level, but also how much energy is drawn from it per second.