Dual USB Output Super Slim Power Bank Ultra Thin, 3000mAh Portable Charger Mini External Phone Battery Pack Small Dual Outlet, Emergency Phone Power Backup (White)

I purchased 3 of these a year ago and find the size and shape really useful. They fit neatly behind my iPhone when I am walking around and are light enough that I can keep a spare one in my pocket without any bulk. I found that in the end I hardly ever plugged my phone into an outlet after I had these because I kept leaving it behind when I wandered off! So they have been heavily used for a year. Recently, I noticed they weren't delivering as much charge as before so I decided to replace them. In the 2022 model the C port was only an input, but in the 2023 version it is both input and output so that is an improvement. I also use them with the Galvanox Ultra Slim wall charger and they work very well together: www.amazon.com/gp/product/B097F5JJ56.

Appears to provide power at the rated 3000mAh capacity. The light weight is it's biggest advantage. The second charge didn't work overnight however, but after unplugging and plugging it back in, it charged fine.

So compact fits great in my pocket or anywhere. My old nano’s battery won’t hold a charge anymore so this battery charger has been a great tool to keep my nano charged and playing. Saved lots of money they wanted $150.00 to replace my nano battery.

I bought this specifically to use with an ultralight solar panel. It will not recharge with a 6w panel although the lights do flash as though it recognizes it's getting power. I tried it with a 10w panel and got the same results.As long as you plan to plug it into the wall, it seems to work fine. I have a box full of other batteries that do recharge (in all their glorious slowness) with these same solar panels.It's possible I got a bad unit, but given it performs in every other way, I assume something in the chipset does not allow it to trickle charge.

I did return this item, but only because its dimensions didn't work for me. It's ability to charge and work with other devices was indeed handy. If the dimensions work for you, then have no worries using this item.

I needed a portable charger for my portable nebulizer I take to work with me & had to find one with a low voltage power source, this is the perfect one for my needs.

This doesn't charge by USB C. Only charge with USB micro (ugh). Honestly this is false advertising, given that the image says that it should be able to charge with USB C. You can tell because when using a USB C cable to charge it doesn't display anything. But when you use a USB micro the dots will move, indicating a charge.

I have updated this from my previous 5-star review. We didn't travel for most of 2yrs during pandemic... now travels commence and I went to charge these up... I bought two and neither will take a charge now. It is 2.5yrs since I purchased and the 1yr warranty is over. I contacted the vendor/mfg and they say as the warranty is over there is nothing they can do. Now they go to the landfill. I would certainly expect them to last more than this, esp given they have probably had less than 50 cycles. The brand still sells these and similar ones, but I won't buy from them.Original Review:I got this for my wife to take on a 1mo trip to Asia. We use our phones a lot and run thru a full charge by mid-day. This lets us keep full. I have it with an iphone 7 and just keep it in a bag charging with a stubby cord when not in use. Its slow charge (1A) so dont expect the fast charging of the big boys, but it is super light - lightest I found in the 3-5000mAH. Only a couple weeks use so far so will see how it holds up, but so far very happy. esp with having a USB-C output (would be nice if that was in/out) with some GaN/PD support, but thats asking a lot.