Wich is the best? remove the batt. when you plug the power adaptor?

what is the best procedement when you connect the macbook pro with power adaptor for long periods?
remove the battery ?
or
leave it after total charging ?
thnaks for the help

There's no reason to remove the battery. The charger stops charging the battery once the battery is fully charged. Recharging won't occur until the battery's charge level drops below 95 percent. This protects the battery from constant recharging and from overcharging.
Removing the battery also results in the CPU automatically throttling down to half-speed.
For more on the topic:
http://www.apple.com/batteries/
http://docs.info.apple.com/article.html?artnum=86284
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