Key Chain Charger for iPhone 5s

[yankeesdrummer]

I've been using the mophie key chain charger for my 4s and I really like the way it works but with my 5s arriving within a few hours, I need to pick up something equivalent to it asap as I am a heavy user on my phone. I've seen several portable chargers for the 5/5s but none that can be hooked onto a key chain. anyone have any suggestions to what I'm looking for?

 

[deeddawg]

No experience with the product but a search for "lightning keychain charger" on Amazon revealed this: http://www.amazon.com/ARRIVAL-Authentic-Apple-Certified-Nomad/dp/B00E9B8V5M

Also saw several alternatives when searching Google with the same term.