Juicy external battery packs are definitely the way to go for the globetrotting nerd – I have had my bacon saved a few times by the 12,000mAh battery pack I carry with me on trips – they’re not only good for the iPhone, but the iPad min, a Kindle, and even USB bike lights (this is the best unknown use for these chargers).
But you know what would be even better? A ruggedized, waterproof battery pack. And – surprise – that’s exactly what I’m just about to tell you about.