if using fast charge cable).My only petty complaint is that it's a bit bigger than what I was previously used to, but it's really not a problem at all: just don't stick it in your pocket expecting it to fit comfortably

Now, the cable isn’t the issue, the issue is the lack of a power brick

Anker makes the best cables and battery bricks

One cable was defective, and one battery pack died much sooner than expected

I bought an Anker powerbank years ago, back when it used a proprietary charging input cable and charged my phone at a snail's pace (I lost that proprietary cable within the first year, but that powerbank charged so slowly that stopped using it anyway)

My samsung galaxy S6 reports "fast charging" though I don't know if it's as fast as with the samsung wall charger.