Hello Everyone, Though I am still undecided about which phone I shall buy next (inclined to go for Note 4), I know my usage will not slow down and would need battery under steroids. I tend to dislike the concept of carrying a charger (which I did so far) or external battery. It leaves me with either buying an extra internal battery to swap with or a case including a battery. I spotted some brands such as zerolemon, anker, seidio to name a few. For those already using this internal or case battery which solution would you recommend and why? Also do you have a brand/favorite product ? Thanks.