Originally Posted by wildkitten
But the nice thing about the S4 is the swappable battery. Unless you are going to be away from any charging source for days at a time, a spare battery or two is the perfect solution as you won't be tethered to a cable and a huge heavy brick at the end of it that you have to carry around.
Which is what's nice about the device I mentioned in this thread:
S4 Battery and Charger $49 From Samsung Direct
For $50 (or $25 w/ 50% off coupon) it's a great solution, in part because it gives you a way to charge the extra battery.