This is the perfect power bank

- Compact small power

However it's a poor choice for applications where you want to leave the device connected to its charger full time while using it to power another device, which is how I use another brand of battery pack, to power things like a Raspberry Pi, a USB audio mixer, and a USB light

Another awesome power bank from Anker

It never gets hot, it charges faster than my car charger (which isn't an ANKER), and holds it's power well, even if I go a few weeks without using it

Enough power while being not to heavy to carry.

Recommend this as backup power for the Nexus 6P.

Best Power Bank for its size

This is an excellent backup power

It charges my Samsung Galaxy 2 and half from zero great power bank from anker no more other brands, the only thing I didn't like is that it doesn't charge while it charging the devices, my old anker, I can charge my phone with

It had more than enough power to charge a dead phone in less time than I had expected

i received a replacement battery and it worked perfectly!so far this is still the best power bank compared to the ones i used before

The best and most convenient power bank out there

The new Astro charges my tablet without overheating so I can recommend this compact power bank.

It was great to have when I lost power during the recent hurricane to charge phone and tablet.

It's a perfect compact power pack for emergency