That was quick. While we’re currently (literally!) getting our hands on the LG G4, Mophie is already out of the gate with accessories. A notable name when it comes to external power packs for your phone, Mophie is introducing a juice pack for the LG G4. Juice pack is Mophie’s lineup of cases that double as power packs, giving you the pleasure of powering up while on the go, but not needing to tether to a clumsy battery pack via a power cord.