I found a news that might help most of laptop owners to get an idea about their Laptop/Notebook battery life related things.
news item describes things like, Battery Basics, How to check your battery, Best Practices and more.
" Best practices to maintain battery life You'd think that the best way to keep your laptop's battery from wearing out is to not use it. Right? As it turns out, batteries are like muscles; they need to be worked out regularly to stay healthy. Ideally, you'd use your laptop unplugged at least once a day, like on a train or bus commute or on the couch in front of the TV. If you're not going to use it, constantly charging your battery is a bad idea; HP recommends on their website that if you're going to leave your laptop plugged in or put up in storage for more than two weeks, you should take the battery out of your laptop." source : yahoo.com
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