I bought my iPhone 4s Nov. 20. I updated immediately to ios6.0 and cannot make it through even 1 day without the battery going down to almost zero. Thats with apps closed, wifi off, screen off, etc. It's a horror. I have to constantly keep charging

I purchased an iPhone 4s on Nov. 20th. I immediately had to update the software to ios 6.0.1. I cannot even get through 1 day without the phone battery losing all power. It loses 10-20% per hour, and that's with apps closed, wifi off, bluetooth off, screen dark, updates current, etc. You can hold the phone in your hand and watch the power go down. It also gets very warm. I have to charge it once or twice a day so I have it when I need it.

I took it in to the Sprint store for diagnostics to see if there was something wrong with the phone. They said the phone is ok, but one of the agents said it's the last update - he has had problems ever since. He said he thought they are working on fixing it & we should be getting another update to fix it. Is this true? I sure hope so! They also showed me how to reboot the phone, especially when it gets so warm. Is there anything else I need to do? Please help!

This is my first iPhone and I am very frustrated and disappointed in Apple. If it's the software, I would think they would be frantically trying to fix it. This phone was not the cheapest phone, so the battery life should be better!