Im using a Samsung GT-I5503. It runs Android 2.1. Now the problem is, the battery drains too quick. within 4 hours, it dropped down to 45% after a 100% charge. its just like that since i bought it. i used battery optimizers and several ways to save battery life, but still it acts funny. Im a "stay connected all the time" kind of person and cell internet is important to me. so my cell internet is on the whole day and a couple of apps such as Facebook, twitter and msn. all other battery consuming options are set to off. bluetooth, sync, wifi, brightness, 3g etc. my question is. Is there anything i can do to save battery?