I just got the Thunderbolt 3 days ago and upgradted from the Incredible. The battery is absolutely horrible. I've turned everything off that I possibly can, reduced brightness, screen time out less than 15 sec, turned off 4g ( i live in a 3g area anyway), and followed all the steps to make the battery last longer.
I had only 3 hours of battery life yesterday after only sending about 4 text messages. This was after the phone was fully charged.
After being fully charged today, I turned the phone off at 6am, and then turned it back on 930 am to find that the battery was at 50% and the phone wasn't even on!
Could this be a faulty battery? I have 14 days to return the phone and I'm thinking of just returning it. I need aphone that will last 12 hours -which the incredible never had a problem doing. Of course, I always the internet and everything turned off though.