I did a DFU restore as new to 6.1.1 and used evasion 1.3 to jailbreak. And my battery is much better than before when i was on. I don't know what the deal was on 6.1 but boy was it atrocious for me. Finally relived to have my battery back to how it was on 5.1.1. Too bad the 4S is one of the most disappointing iPhone battery life's ever to begin with. But regardless, I'm stable again, same life as 5.1.1, and couldn't be happier. When I was on 6.1, my phone would be around 35% after 4-5 hours with hardly zero use. Yesterday I had a few texts and read a couple threads on MacRumors during lunch break at work. My battery died on my way home from work yesterday and I didn't use it after lunch except to check the time. Also, my phone never rang yesterday. Comoare that to today and its like i have a brand new battery or something. Right this second, my usage is 3 hours and 57 mins and my standby time is 15 hours and 25 mins. I still have 41% remaining battery life.
Edit: I typed the wrong remaining battery life. I accidentally typed 46% when I meant 41%.