This is not a passthrough charger. If you try to use it as one, you will soft-brick this battery. You'll break fast charging on it. Do not try to use it while charging it.That said, once I looked up the solution, it was pretty easy to fix.This thing is great. I originally bought it so I could play my handheld gaming pc away from outlets for longer, but that need lessened so now it mostly keeps my phone charged while I'm at work for longer periods. I charge it once every week or two.

very nice

This made my travel so convenient. It's super fast charging and recharging. I have charged 3 iPhones fully charge on this charger. Used it with my Asus ROG Ally and played for hours. I love this thing!

Whenever I purchase a power bank not made by Anker, I always seem to regret it. False capacity ratings, lack of the ability to stay on under low current draw, inability to charge certain devices...none of that applies, with them.This bank is great for keeping ANC headphones and phones charged between flights (yeah, I'm not connecting any devices to an airport USB outlet..), and is under the TSA battery capacity limit. If they say otherwise, it's because they recognize quality, and just want to take it home themselves :P.Just get it, already.Also, I keep mine in the OUKNAK case you can find on here. It's one of those soft hardshell cases with a mesh bag on one side, where I store the cable that comes with the device, along with 2, 6" flat cables. The small area above where the device sits, I store a pair of electric hand warmers, and is large enough to allow you to plug in small USB devices and zip the case closed, if you ever need to do so.

Solid quality power bank. I’m a pilot and I need to have my phone and iPad charged. Works great!