T60P w/Docking Station Battery & Power LED's Go out when Power button pushed rem batt to fix

Question

Subject line says it - unit runs fine, battery is is good shape, replaced charger with a new spare.  With PC on the docking station and all plugged in, both batt and power lights green, pushing either the laptop power button or the docking station power button, immediately extinguished both LED's and they remain that way until the laptop is removed from the docking station and the battery is removed and then reinserted into the laptop.  PC will then boot and run normally with battery showing full or nearly full charge.  Power cord can be reinstalled and all goes fine or the PC can be inserted onto the dock and all goes well also.  But, after a normal power down, the restart problem reoccurs, etc.... Any ideas out there? 

Answer 1

UPDATE #3 
OK, getting interesting.  Last test was to shutdown and leave off overnight, after having been successful at rebooting several times in a row beforehand.  After it sat overnight, with AC adapter plugged in, it would not boot in the morning.  Same situation as has been the case.  Pulled out battery, reinserted, and boot took off.  Later, laptop was taken to an off site meeting, whereupon, it would not boot no matter what was done with battery or adapter.  Condition repeated back at home.  I then decided to check the battery voltage and found it to be 12.78v, which from my battery knowledge for Li-Ion's should have only been a max of 12.30v for this nominal 10.8v Li-Ion Panasonic battery.  (4.1 v/cell max, nominal 3.6 v/cell)  So, it appeared to be overcharged and would be why I was seeing no problems with restarts or short-term shutdown/reboots, but only after the battery had time to fully (Over) charge.  So, I connected a 1 amp load to the battery using a 12v automotive tail lamp bulb I had around and ran the battery down to 11.78 v.  I just wanted it below 12.3v.  When battery was reinstalled in laptop, boot was successful.  At that point, I reenabled the Thinkvantage Power Manager 6.4 program thru the config.sys program, where I had previously disabled it, and then rebooted.  Once booted up, I then ran a Battery reset, which took about 6 hrs to top of the battery charge, fully discharge it (somewhere in the 9 v range) and then recharge it.  Once that completed, I removed the AC adapter and drained the PC down to about 90%, and shut it off.  This morning, it booted just fine on the battery alone.  I plugged in the AC adapter and it charged up, but only to 91%, where I had told it to stop thru TPM.  It is now set in software to only charge to 91% and stop charging until the capacity falls to 85%.  This is planned to be a temporary setting, just until I understand further what is happening.  The 'reset' capacity of the battery is now 77 WH, vs the design WH originally available as reported by the battery BIOS as 84 WH.  In other words, the new 100% capacity is 77Watt-hours instead of what the battery had two years ago when it was new.  I also just discovered a 'Important Message' related to the Battery Software Update Utility that describes a problem with certain Panasonic manufactured Lenovo batteries that sounds like what I have been fighting.  This problem battery is a replacement for the original one from 2007, which also died and completely locked out the laptop.  Until I can get the laptop shutdown and pull the battery to check the FRU/partnumber, I will not know for certain if it is indicated in the Lenovo Battery Utility Update or not, but I'm betting it is.... stay tuned.....ok - just checked the battery - it is a 42T4620 and not one of those listed in the Battery Utility Software Update - but I think is should be!  BTW, shutdown, removed battery to check P/N, rebooted - all fine.  The 'acid' test will be to leave it plugged in over night and see if it restarts okay....TWT...  oh, and in case you're wondering, I have a new laptop on order because this is nuts.......:-)