I had the battery replaced not even a year ago because it had been draining so rapidly. When they replaced the battery, I was told that there were some other diagnostic things they could do if the replacement didn't help. I did not do that because it sounded like it would be cheaper to get a new phone. Now it is back to the same old thing, not lasting more than maybe 4 or 5 hours without having to be charged. I took it to Verizon and they couldn't detect anything obvious that would have caused it to happen. I admit, I don't know much about what settings I should have turned on or off to help with this. Any suggestions?