Who here has fully charged their new iPhone's? It takes several charge and discharges for lithium ion batteries to achieve their peak.
This is BS. At the most you might get a few more percent but expecting it to jump 25 to 40% more is dreaming. Nothing you do to your battery is going to make a huge difference.
These 4S battery complaints are not much different from when the 4 came out. Some will claim they can go 5 days between charges while others will only get a couple of hours! LOL!