Battery life about 1/2 with 7.1 on 5S

I just want to add fuel to the fire about 7.1 battery life. At first I thought it was my imagination - perhaps I was playing with 7.1 more than usual to see the new functions. Now days later, I feel like the battery life is now about half of what it was before updating. There's even an article in the LA Times about the complaints.

There are lots of posts about it with no answers.

Anyone contact Apple support to see what's up?