HT3964 My apple macpro lap top will not turn on even thow it has taken a full charge.

My apple macpro will not turn on and it is fully charged.
I went on holiday for 1 week so i put my laptop in my safe at home ,
when i returned and tried to use it it wouldn't come on but it took a full charge i don't understand why
this is ,it's only 18months old. Has the safe caused damage in some way ?????

Reset SMC.
http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Try the left side keys on the keyboard and hold all the keys for about 20seconds.
http://support.apple.com/kb/TS1365
Leave it outside for a while. Try to start it up tomorrow.
If this does not help, contact Apple.
Best.

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