Unless Des has psychic powers he will not see your question...
He last said...
Just done this and it worked for me.
In February this year...
http://howtomendit.com/answers.php?id=333094
Is where the answers are - most significant is an answer from Hyflyer in February 2011 who said...
It is not the battery . Its a failed eprom sensor on the motherboard A simple fix using only a #6 torx and a very fine soldering iron . Remove the small sensor on the finger end of the motherboard and solder a jumper from pin a to c . A being the top pin and C is the right side pin , looking from the topside of the motherboard.
Good Luck...
April 2017
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