MBP 13'' Cannot detect battery & battery indicator light won't off

This morning, I found my mbp cannot detect the battery and the green battery indicator lights on the side of the mac won't switch off even if I turn off the computer and disconnect the power supply. Also with the problem that the mac cannot detect the battery, mbp cannot be switch on without power supply. I just got my mbp on Feb 2010 and I really enjoy it. These problems worried me a lot. So I went to apple retail store straight away. The staff has a quick look over the battery information on "About this mac" and updated the newest software, and suggests me to make a booking with Genius Bar. Then I went home. I did some searching on google and read some information about SMC and hardware testing. I did the hardware testing first. With a quick scan the computer provide an error code:
4SNS/1/40000000:TB3T-128.000
And then I did the SMC procedure. This is where I solve the battery and indicator light problem. Now, the mac can detect the battery, the indicator lights return to normal and the battery can be charged. Seems all fine. But do you think I should cancel the booking with Genius Bar since the problem is solved? Or do you suggest to still bring into store and have a check? Thank you.

Reset the SMC (System Management Controller) and advise us if that helped.

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http://www.ifixit.com/Guide/Installing-iBook-G3-Clamshell-DC-In-Board/114/1
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Wouldn't this be better in the Macbook Pro forum than the Pages forum:
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****Click the White thumb to say thanks****
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MBP 13'' Cannot detect battery & battery indicator light won't off

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