Can someone help?
"Resetting" the battery does not magically restore lost capacity. All it does is (sometimes) calibrates the gauge to more accurately replace actual capacity. The same is achieved by simply fully discharging / recharging the battery during normal use.
The latest (or one of the latest) power management driver is available here. It does not explicitly mention X61, but may work.
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
After I reset the battery, the capacity actually shrunk from 28wh to 21wh according to "powercfg /batteryreport". I am still testing to see if it actually altered the capacity or just change the gauge. My suggestion is not to reset the battery for those who want to try.
Upon further testing, I found the battery run down time remain the same. I found something very strange, the Lenovo Power Manager's battery gauge is actually show different battery percentage to the system's battery gauge. For example, when the Lenovo power meter show 43% remaining, the system's battery gauge is only 30%. Not sure which one to follow.
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