Like most battery packs at this point, uNu's Enerpak Tube ($60) and Enerpak Vault ($80) don't come with built-in cables or bundled cords. Instead the units each have USB ports -- one on the former, two on the latter -- allowing you to plug in your own cables for whatever device you're looking to charge. Tube's single port supports 1A charging, enough power for iPhones and iPods. It also has a flashlight underneath the Micro- and full-USB ports. Vault…
