I just bought an iTaste MVP with a 2600mAh battery, way more power than I use in a day. (I'm on day 2 and the battery light is still showing green) This is the first device I've used that's not an 808, where the battery drains fairly quickly. Given that it still has so much charge, should I charge it overnight, every night, or let it run down and only charge it when the red light comes on? Which will give me better battery life? Thanks for any input!