No, we don’t mean “juice” as in street cred (though anyone from Bogota to Belarus would vouch for you), or “juice” as in steroids (though Snooki would probably love it if you did). We mean juice as in power for what’s important, like keeping your iPhone or iPod pepped up and ready to go. The Mophie Juice Pack Reserve ($35.00) is a brilliant little backup device that gives your iStuff extended battery life. It’s an advanced battery cell that allows for ultra fast charging—twice the current as traditional 500mAh batteries. Mophie is lightweight, compact, and even doubles as a keyring so you never accidentally leave home without it. Good thing, since Snooki hates it when you don’t answer her texts right away.