It's safe to see that my iPhone (especially its battery) has seen better days. That's how I knew I would need a portable phone charger for my trip to NYC (you can read all about part 1 of that trip here). I found this portable iPhone charger on Amazon and figured it would be worth $12 to test it out. It was a lifesaver during our trip! We would charge this up at night (it comes with a cord you plug into your iPhone wall charger) and then use it to charge up a phone one and a half times! It works with your normal iPhone USB cable and charges pretty fast, which was super convenient in the big city!
Now, I keep this charger with me in my purse! It is a little larger than a tube of lipstick and is pretty light for the job it does! I could not recommend it enough!