Re: How to retain the battery life
Back in the day you were suggested to run the battery ALL THE WAY down - meaning your laptop turns off b/c of no power. Then let it charge to 100% while turned off, then let it run down again.
From what I've read this is no longer applicable with newer batteries(Lithium-ion batteries). Back in the day (less than 5 years ago) batteries had a memory module, where if you didn't allow it to die all the way down and charge all the way up the battery would actually 'think' it had less battery life then it actually did. Essentially shortening the lifespan and battery minutes of the battery.
With todays laptops this isn't the case. Double check the battery type, but if it is a newer battery you can't do much to 'prolonge' the life of the battery other than keeping it away from extreme heats.