Altigo 13400mAh Portable Charger (USB Power Bank | Battery Pack) – with Dual USB C and Micro USB Input and 2 Port High Speed Output – Compatible with iPhone, Samsung Galaxy, Kindle Fire & More …

This device is the single best charger that I have owned and being on the road 2 weeks out of every month it's how i power my phone and other electronics time and time again. The power of this bank is what separates it from all of the others on the market today (has quick charge).

I have been testing this battery for 1 month. I can charge it from zero to 100% in 4 hrs. One port will quick charge my phone. The other will not. It says 3a15w input which I have tested against a 2.4a/12w Anker charger. The 2.4 charges faster. When charging the battery and another connected device. The device charges first then the battery.

This is a really awesome battery, however I gave the ease of use 4 stars because I had to figure out how to actually make the battery charge my phone. Didn't know I had to hit the button 3 times just for it to actually charge. Normally it's either plug in and charge or hit a button and it charges. Still a great product.

Bought this to top off my new galaxy s9 plus and vape pen here and there. Better than I expected. Lots of battery life!!

Daughter likes it. She can charge her iPhone and the pair of AirPods at same time.

Best larger portable charger I have ever had. It charges quick, can recharge many phones over a long period of time, and looks cool with its steel form factor.

good quality and very useful in this era of electronics and mobility

I keep this charger in my car. It works great. I'll take it on a bike ride to keep my phone charged. I fly every month and it keeps my phone and iPad charged on the plane.