Battery Pack - in or out?

I am a new convert to Apple Powerbook. I heard some horror stories about the short battery lifespan.
I heard that frequent recharging of the battery when it is not low, actually drains out the battery faster and shortens its life. Is this true?
Should I remove my battery pack from my Powerbook when I am using the power adapter?? I am contacted to the power 80% of the time.
If yes, is there any risk of damage to the battery compartment, since it is exposed and what can I do to protect it?

Not sure that's very helpful.
Just running it down a bit and charging up all the time is ok, as long as you run it down fully every couple of weeks or so. Apple advise that you should "keep the electrons moving" so run the battery a bit and then charge up every couple of days or so with a full discharge at least once a month and preferably once every two weeks.
When plugged in, the charger charges up to 100% and then stops charging until the battery drops below 95%. This is to stop the situation where it is continually charging between 99-100% which is bad for the battery.
No reason you can't run without the battery, but there is no reason you have to. If you store it, store it at 50% charge - but if you just run it down a bit every couple of days as suggested (I would say a varying amount between 10 and 60% usage) this will maximise the useful battery life. Bear in mind the useful life of lithium ion batteries is not that long even in the best case scenario - you can only do your best.
Lastly, make sure you calibrate your battery at least every two months and once every month ideally.
You will find further info here;
http://www.apple.com/batteries/notebooks.html
It is not recommended to run the battery down and charge right up each time you use the machine.
I hope that helps.
Best of luck.

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