Hard Drive Upgrade

i want upgrade 13-inch mid 2009 macbook pro new hard drive.

i'd increase size (i thought 750gbs) , speed (7200rpm). i'd not increase noise of macbook.

battery last less 7200 rpms?

have suggestions?

many thanks.

 

the battery life of laptop won't take appreciable hit.
7200 rpm batteries have spin , read/write power usage identical of 5400 means no battery impact.

 

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