The Limefuel Rugged fits the bill perfectly.
It weighs 13 ounces, so while it has some heft, it’s not heavy or bulky.
If the battery is charged, all the juice goes right to your gear, which is really nice.
The charging cable that comes with the Rugged is also worth mentioning.
It’s flat and won’t tangle, much like a SATA cable.
If you gotta charge a Lightning gear, leave the adapter on.
If you’re charging microUSB, just slide it out of the way of the microUSB port.
This way you don’t need two cables to charge two different devices.
It’s also shock and crush resistent.
We kicked ours around a fair bit, and it barely picked up a scratch.
When you tap it, it’ll light up and display how much charge is left in the battery.
The charging ports are at the top, and are be protected by closing a snap-lock port cover.
There isn’t' a lot to dislike about the Rugged, actually.
A jacket pocket, sure, but a pants pocket might be a bit much.
Still, I never found myself needing to plug in more than two devices at a time.
Its build-quality was solid, and felt like something I could carry around safely.