There are a couple of battery life ideas/needs this phone has. One is to lower the screen brightness. You can also adjust the timeout of the screen. A must is to make sure you really close applications. My daughter, who has had a 6620 for years (also an s60 device) says to always select options and then exit or close whenever you are done with something. I've had it a week and charged maybe three times. I'm not letting it go dead on purpose. That's old, wrong battery advise. I get about 2-3 days with light use. This is having it mostly in a weak signal spot.