Dark Energy Reservoir premium USB charger (review)

Hey, I’m Chris. I wrote this article and I’m also the founder and Editor of DailyTekk. Lets connect on Twitter, Instagram, Snapchat and YouTube. Check back daily!

I’ve got a new favorite portable power source and it goes by the name of Dark Energy Reservoir ($129). It’s got the three s’s a portable USB charger needs to win me over: it’s small, sleek and simple to use.

Over the years I’ve used a number of portable power solutions. I have to since I’ve done a decent amount of traveling. And even if I hadn’t traveled all over the USA over the last year, I’d still have found myself at various coffee shops or just plain away from my desk needing some extra juice. Suffice it to say, I use a lot of power and have been looking for a great portable USB power device to keep me going when I’m away from home base.

There are so many portable USB power solutions out there it’s almost ridiculous. I’ve seen (and tested) plenty that are basically the epitome of ugliness. I’ve seen (and tested) too many that are just awkward to shape or store. I mean, some have such sharp corners they are sure to cause injury or poke through whatever poor bag or backpack unfortunate enough to have to store them.

What I’m driving at is that design matters in these devices. So in a product category that seems to have forgotten about design entirely, it’s not only refreshing but welcoming to find a product that not only functions, but looks, really good. The thing is, I could care less how much a portable battery pack can extend my battery life if it doesn’t fit into (and around) the rest of my life. Fortunately, I ran across the Dark Energy Reservoir which fits into my digital life perfectly while it keeps it fueled up.

The Dark Energy Reservoir is nice and compact. It’s barely bigger than an iPhone 5 in terms of length, width and thickness. It’s also sort of velvety and sort of soft to the touch (yet not in a wimpy sort of way—it’s plenty tough) meaning you won’t mind if it bumps into your MacBook Pro or other scratch-able device.

So how much energy can you draw from the reservoir? An iPhone 5 can draw nearly 5 full charges (4.9 to be exact) while an iPod, being much larger, can grab 1 full charge from the device.


If you’re looking for a portable USB power solution to back you up when you run out of juice on the go that was designed with real people in mind, I can’t at this point recommend anything higher than the Dark Energy Reservoir. I love it.

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