"Battery-centric web site Battery University explains the real relationship behind battery life and charging. Lithium-ion batteries-the batteries present in most modern smartphones and laptops-don't need to be fully discharged every once in a while to retain battery life, as many of us have been told. In fact, it's quite the opposite..."

Over the years, I'm sure we've all heard a lot of crazy battery advice: don't recharge your phone/laptop/MP3 player until it's completely dead; don't charge it too often; when you're not using it, take out the battery, etc. Much like telling someone they need to defrag their Wi-Fi connection, some of these "tips" just aren't true. This article gives you some important tips about how to maximize the battery life on your portable device.