Does it drain so fast because siri uses a lot of the a4 processors memory ? I think that could be why.
I did not watch the video
Update!
My battery life has drastically improved! Doing both the Siri and calender fix has more than doubled my battery time. I used to get 50 percent at about 2 hour of hardcore usage. Now I get about 80 percent on 2 hours of hardcore usage. Then again I also did the battery drain completely and recharge to 100 percent trick a few times too, to train the old battery on my 4s. I'm a happy camper and I do suggest it. Good find!
iMarilina definitely ! I'm very curious as to if 5.1 will fix the battery. I'm hoping it will, so please keep us posted!
Let me know how it goes with 3 g on, afterwards. I like to have my 3G on most of the time. I google everything I think of.