Just got my first camera (60D) **WOOT** and now im wondering about the first time charging the battery. the green light on the charger came on just now after around 2 hours of charging, but the dude who sold me the camera said that the first charge must be 5-6 hours. Is this true? Will i either harm or prolong my battery life by doing this? Im sure this is old school methods but my charger is still plugged on as im writing this. Should i turn it off now or listen to what the dude said?