OK guys, if you’re reading this post it means that you most probably own a sexy iPhone 4 or 4s. You’ve made love to it, cradled it in your pocket for days, and have sworn everything to it. You tell everyone how beautiful a phone you have and yes you can even take it underwater. But, deep down, there is this one dark secret that you feel embarrassed about and it becomes a frustration which you try to justify every day: that your iPhone 4s has really crappy battery life. Take it out at 9AM and you’re down to 50% battery after lunch. Sucks doesn’t it?