Laptop stopped recognizing the battery

Hi
Few days ago, I performed an update to the Lenovo managing tools on my ThinkPad 301. It identifies a few un-updated drivers, include the BIOS version and I accepted its recommendation for upgrade. From that point, the laptop stopped recognizing the battery.
The battery itself still there, it's full and it can be recognized by other programs, but the Lenovo managing tool insists on turning the laptop down the moment I unplug it from electricity. Uninstalling the Lenovo power managing tool did not make any change.
How can I revise the process so I can use the battery again?
Thanks
Boaz

Update to problem:
Plugged in a 65W power supply that was on a 6930p. Charged up no problems. Plugged my 90W adapter into the 6930p and it kept that system powered up. Plugged the 90W into the 8440p, nothing. If I purchase a new PS, this will be the 5th one in a year. Two were generic and two were HP. To me, it indicates a bigger problem with the system board.

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Iphoto is crashing when it opens. It begins load photos and then crashes. Also, before this crashing began, it suddenly stopped recognizing the .jpg photos I was uploading, which has never happened in the past. Please help!Process:         iPhoto [560]

Process:         iPhoto [560]
Path:            /Applications/iPhoto.app/Contents/MacOS/iPhoto
Identifier:      com.apple.iPhoto
Version:         9.4.3 (9.4.3)
Build Info:      iPhotoProject-720091000000000~1
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App External ID: 15017489
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OS Version:      Mac OS X 10.8.4 (12E55)
Report Version: 10
Interval Since Last Report:          481717 sec
Crashes Since Last Report:           11
Per-App Interval Since Last Report: 37293 sec
Per-App Crashes Since Last Report:   9
Anonymous UUID:                      2FFD7A5A-0F5F-4B50-0A25-9810E36CD424
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Exception Codes: 0x0000000000000002, 0x0000000000000000
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*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil'
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0   CoreFoundation                      0x96fd7e8b __raiseError + 219
1   libobjc.A.dylib                     0x98a1c52e objc_exception_throw + 230
2   CoreFoundation                      0x96ee307b -[__NSArrayM insertObject:atIndex:] + 299
3   CoreFoundation                      0x96ee2f40 -[__NSArrayM addObject:] + 64
4   iPhoto                              0x000b8858 iPhoto + 256088
5   iPhoto                              0x0039fd0c iPhoto + 3300620
6   iPhoto                              0x002af65c iPhoto + 2315868
7   libdispatch.dylib                   0x92e82cb1 _dispatch_barrier_sync_f_slow_invoke + 80
8   libdispatch.dylib                   0x92e7cc82 _dispatch_client_callout + 46
9   libdispatch.dylib                   0x92e822e3 _dispatch_main_queue_callback_4CF + 223
10 CoreFoundation                      0x96ed3c29 __CFRunLoopRun + 1961
11 CoreFoundation                      0x96ed301a CFRunLoopRunSpecific + 378
12 CoreFoundation                      0x96ed2e8b CFRunLoopRunInMode + 123
13 HIToolbox                           0x91fbdf5a RunCurrentEventLoopInMode + 242
14 HIToolbox                           0x91fbdcc9 ReceiveNextEventCommon + 374
15 HIToolbox                           0x91fbdb44 BlockUntilNextEventMatchingListInMode + 88
16 AppKit                              0x9433d93a _DPSNextEvent + 724
17 AppKit                              0x9433d16c -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 119
18 AppKit                              0x943335cc -[NSApplication run] + 855
19 AppKit                              0x942d65f6 NSApplicationMain + 1053
20 iPhoto                              0x0008a0b9 iPhoto + 65721
21 iPhoto                              0x00089705 iPhoto + 63237
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.CoreFoundation                0x96fd86a7 ___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___ + 7
1   libobjc.A.dylib                         0x98a1c52e objc_exception_throw + 230
2   com.apple.CoreFoundation                0x96ee307b -[__NSArrayM insertObject:atIndex:] + 299
3   com.apple.CoreFoundation                0x96ee2f40 -[__NSArrayM addObject:] + 64
4   com.apple.iPhoto                        0x000b8858 0x7a000 + 256088
5   com.apple.iPhoto                        0x0039fd0c 0x7a000 + 3300620
6   com.apple.iPhoto                        0x002af65c 0x7a000 + 2315868
7   libdispatch.dylib                       0x92e82cb1 _dispatch_barrier_sync_f_slow_invoke + 80
8   libdispatch.dylib                       0x92e7cc82 _dispatch_client_callout + 46
9   libdispatch.dylib                       0x92e822e3 _dispatch_main_queue_callback_4CF + 223
10 com.apple.CoreFoundation                0x96ed3c29 __CFRunLoopRun + 1961
11 com.apple.CoreFoundation                0x96ed301a CFRunLoopRunSpecific + 378
12 com.apple.CoreFoundation                0x96ed2e8b CFRunLoopRunInMode + 123
13 com.apple.HIToolbox                     0x91fbdf5a RunCurrentEventLoopInMode + 242
14 com.apple.HIToolbox                     0x91fbdcc9 ReceiveNextEventCommon + 374
15 com.apple.HIToolbox                     0x91fbdb44 BlockUntilNextEventMatchingListInMode + 88
16 com.apple.AppKit                        0x9433d93a _DPSNextEvent + 724
17 com.apple.AppKit                        0x9433d16c -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 119
18 com.apple.AppKit                        0x943335cc -[NSApplication run] + 855
19 com.apple.AppKit                        0x942d65f6 NSApplicationMain + 1053
20 com.apple.iPhoto                        0x0008a0b9 0x7a000 + 65721
21 com.apple.iPhoto

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If we use while charging, is the power required directly taken from the external supply or from the battery itself. Which is the safest way to use the laptop without drawing power from the battery?

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