Dark Energy's Resevoir Portable Battery

Don’t you hate being on the go all day, and your smartphone runs out of juice? Well, tech start-up Dark Energy has the answer.

The company recently introduced their first product, dubbed The Reservoir. It’s a compact portable energy source for USB powered devices in the marketplace, boasting the ability to charge the average smart phone 4 to 5 times before needing to be recharged.

Additionally, the battery will maintain its charge for up to one year without needing to be charged, making it perfect for an emergency kit for reserve energy.

The Reservoir’s dimensions are 5.5 x 2.69 x 0.47 inches, and weighs in at just 5.9 ounces. It comes with the battery itself, a USB charging cable, a microfiber carrying bag, and an AC adapter.

The Dark Energy Reservoir is currently available at the company’s online store for $129.