We review a lot of battery packs here at TUAW. Some are battery cases for iPhone, others are external packs that you can fish out of a backpack to charge up a device that's critically low on juice. But the number of battery packs that can charge either an iPhone -- or two -- or an iPad is pretty small. Limeade, a manufacturing startup out of Boulder, Colorado, has just released the Limeade Blast L180X (US$129.99, available on Amazon for $99.99), an external battery pack that carries a whopping 18,000 mAh capacity rating.
The Limeade battery packs (there are two smaller versions) started life as a Kickstarter project with a huge and enthusiastic crowd of backers who provided $284,290 of funding when the company was only requesting $30,000. Amazon ratings show customer satisfaction to be incredibly high, with a five-star rating with 570 reviewers.
If you're looking for buckets of power in an unobtrusive package, the Limeade Blast L180X is going to make you happy. Wrapped in a matte black smudge-resistant coating, the Blast features curved sides and a simple interface -- all of the business is at one end, with a 1.0 A USB port, a 2.1 A USB port (for charging an iPad), and a micro-USB port for charging.
Like several other external battery packs we've reviewed, the Blast L180X also has a bright white LED that can act as an emergency flashlight. There's a well-disguised button on one side of the Blast; a single tap lights up a green LED strip to indicate capacity left in the pack, while a double-tap illuminates or turns off the flashlight LED.