My macbook pro 2010 extremely noisy and a warning flashed on the screen about a power or battery issue- can you help please?

My macbook pro 2010 has started getting extremely noisy in the last few months and I had a strange warning flash up on the screen a month or so ago about a power or battery issue… can you help please?

Calibrating a 2010 MBP is not required.  All it will achieve is putting an unnecessary cycle on it and shortening its life:
http://support.apple.com/kb/ht1490
You may try a SMC reset:
http://support.apple.com/kb/HT3964
Open System Information>Power and post the following from your MBP:
(Make certain that the charger is connected)
Ciao.

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