Slim Portable Charger with Built in Cable - Ultra Thin Power Bank Compatible with iPhone 15 Series Samsung Galaxy/Note Google Pixel and Other Android USB-C Smartphones

Fantastic. I keep these are the back pocket of my jeans (or suit), and sit on it all day. The charger has not bent, or suffered any harm in functionality. I'll throw a charge on this once a week just to make sure I've got power, it charges quickly, and you have the fantastic size and built-in cords to make this a fantastic charger they have on hand! Highly recommended.

I am impressed with this. The 5000mAh version is listed as the newer version available however I bought that and it was a lot heavier and thicker that you would expect for just 1500mAh more, so if you are debating which to get - go with this 3500mAh version. I use it placed behind my phone to keep my phone powered and its easy to hold both in the hand. Galaxy s20 and onward have a feature allowing 85% max charge only and the phone pauses charging at that point and will draw power from whatever is plugged in, allowing the battery to not be depleted or even get a trickle charged, so it expands the life of your galaxy battery since it's not being used! This powerbank is perfect if you want to do that much of the day as it can just tag along behind it and last hours powering your phone while the galaxy phone just stays at 85%. even rubber band it if you wish, or placed in your pocket with the powerbank behind it. It also fits in my trifold wallet, it's wider than a credit card but sits fine in the center most fold area of the wallet that hold cash. It's an adorable little power bank and is built solid, very lightweight.

I bought this idea because I had a long trip and wasn't sure it I could change my phone when I needed (this gave me a piece of mind ) to this item did the trick perfect for my long travels.

This charger has rapidly become my favorite out of the 4 or so I've bought in the past. It charges my phone quickly, and it's the first one I've found that's truly slim and light enough to carry everywhere. I also like that I don't have to carry an extra cord around to connect to my phone.

I keep coming back to this one, I've bought 2 so far and am considering a third. It fits so well in pockets and bags, it lives permanently in a couple grab and go bags. Personally it gave my phone a full charge, but it could depend on what phone you have and the size of battery. For what it is, it charges my phone pretty quick, great for that boost at the end of the day. The battery pack does take a while to fully charge back up, especially that last 25%. But for $18 and the size, definitely worth having in a pinch.

This product is exactly as described. Small and easy to keep in my backpack when traveling. Nice to be able to extend the battery life of my phone on long travel days. Small enough to keep plugged in and use. LOVE the connected cable

Super slim and compact, I wouldn't call this credit card sized exactly, but carries a great charge for the super small space it takes up. Throw it in your pocket and forget about it. It's also easy to handle while charging your phone - basically blending into your phone profile as you hold it. The only concern I can see showing up is it bending and being a fire hazard - but I don't think that's happening.

UPDATE: I always carried a similar battery in my wallet when I had an iPhone 12 (see the video). I bought this battery even before my new iPhone 15 was delivered. In the months since, I've learned two things. Firstly, the battery capacity of my new phone makes it much less likely that I'll need this kind of emergency battery. Secondly, this battery is much heavier than the previous one. Even though it also fits in my wallet, it is much heavier than before. You should keep that in mind when deciding to buy it. Now, we return to my original review, already in progress. This battery fits perfectly in my minimalist wallet for emergency topoffs. I measured its capacity, and it matches the advertised 3500 mAh. That's enough to take my iPhone 15 Pro Max from zero to about 75%, which is great for a battery this small and convenient. And once I make it home, it only takes around three hours to bring the battery from empty to full. I was put off by the fakespot analysis claiming there were so many questionable reviews. However, I bought the battery anyway since it was the only one on Amazon with a dedicated USB Type C connector that would fit in my wallet. So far, it is working perfectly and is well worth your consideration.

great size and looks well made. Have not found that it does a full charge on my phone though which was the whole point of carrying one in your handbag. but good size and weight and looks quality.

I tested this to see how good it is for its size, and personally I’m not satisfied, but it might be ok for other people. I tested this on iPhone 16 pro, the charge went from 11% to 73%. So it only charged about 62% before the powerbank went dead. The power bank isn’t really smaller than the larger version. It’s the same width, but smaller in height, same thickness. This amount of charge doesn’t justify carrying it with me. I’ll be giving it away to a friend.

Perfect size and gives the right amount of boost

Charges and ultra thin

There is no charge at all in this battery and will not recharge