If there’s one thing all smartphone owners agree on is that their batteries could do with a little more juice. Perhaps that’s where JuiceTank got its name from. It’s an iPhone case that doubles as a battery with a power plug built in which means there’s no need to carry a charging cable with you everywhere. The case itself is made from tough polycarbonate and packs a handy micro-USB charge and data port making the iPhone just a tad more universal and compatible with the European wide standard cable. Back the project now at Kick Starter.