TNTOR Thin USB-C Portable Charger with Built in Cable, Slim Power Bank Credit Card Size Battery Pack Charger Portable for Wallet Compatible with iPhone 15 16 17 Series, Samsung and Android Phones

I recently purchased this slim battery pack, and I must say, I'm impressed with its design and functionality. Its slim profile makes it incredibly convenient to carry around, whether I'm charging my phone on the go or simply holding it in my hand. Plus, its compact size means it fits seamlessly into any pocket or bag without adding any extra bulk. However, it's important to note that while the battery is great for quick charges when you're running low on battery, it does have its limitations. It typically only charges my phone to about 50%, so it may not be suitable for long-term charging needs. Despite this drawback, I find the slim battery to be a convenient solution for staying powered up on the move.

This portable charger is awesome. The slim design makes it easy to carry around in your wallet or purse and it charges your phone fast.

I have literally been waiting for this product for YEARS - searching about every 6 months. I tried everything. You name it. Stupid Clutch, ChargeCard, Battarix, a USB-C AA with a mickey-mouse attachment - every product you're thinking of...I tried it. Guess what!? Except for Nitecore (more on that in a second), NONE OF THEM CHARGE VIA TRUE USB-C, LET ALONE FROM A USB-C to USB-C CABLE CONNECTED TO A WALL CHARGER! They all either use an f*ing USB-Micro or they can't charge from a USB-C wall charger via USB-C male to USB-C male cable. This one, finally, does! FINALLY. The only other product on the market that does this are two batteries made by Nitecore, which is the alternative I've been using until I found this. To be clear, the Nitecore batteries are far superior to this product. I've been using the 21700 NL2150RX which is approximately the same volume but 5,000mAh (so double the capacity of this) and uses a SINGLE USB-C port for both input and output, which is ideal! As far as I can tell, Nitecore has the only single two-way USB-C port power banks in ultra small form factors on the market, and Nitecore products are AWESOME! They're top of the line, which is also reflected in the price. And while I LOVE LOVE LOVE my "superior" Nitecore battery that's about the same size, it's still in the shape of a cylinder, and I really, really needed one in the shape of a card. Finally, TNTOR is selling the battery of my dreams.

I bought this last summer and have been using it quite a bit. Did a great job charging my phone when I was low. Small enough to fit in my wallet and light enough to have it charge and use my phone at same time. I bought 4 more for my people as Christmas gifts. Made me look like a hero.

For its size and slimness, this is an excellent charger. It is very light and very slim. It charged my Samsung S20 from 5% to 50%. which is good for such a tiny charger.

This charger is so handy. It's small, convenient and charges fast. No bulky charger to carry around, it's perfect.

This is too large for my wallet.

Works as well as anticipated. Happy with this purchase.

These credit card-sized chargers are fantastic if you're worried about running out of battery at the end of the night and need to call an Uber, or for any other reason. It's compact and convenient, avoiding the need for a bulky power bank. Note that it's only 2500mAh, so it won't fully charge your phone, but it provides enough power to get you through a few more hours, depending on your usage. The charger is about the width of five credit cards and a centimeter or two longer than a credit card on either side. I've had a similar "credit card" charger before and loved it. It was perfect for traveling or attending a day-long festival when I didn't want to carry too much. This charger slips right into your pocket and is a lifesaver when your phone is about to die, and you need to contact someone or find your way home. My old one was from a brand called "TravelCard" and had a smaller capacity of 1500mAh. This new one is significantly larger at 2500mAh, but the physical size is almost the same. I appreciate that it has both USB-C output and input, as I'm tired of devices that still use micro-USB. I've only used this charger a few times so far, but my only complaint is the charging time. One review mentioned it took 24 hours to charge, which I found surprising. I timed it myself, and it took around 3 hours, which is still quite long for a 2500mAh battery. However, it charges my phone at a decent speed—no super-fast or fast charging, but regular speed, which is acceptable. Lastly, this charger is the best-priced option I've found among similar products. Other brands like TravelCard charge $55 USD for their 3000mAh version, and the Clutch Charger is around $70 USD. It's great to find this one at less than half the cost of the others.

This thing fits in my wallet and can give me half a charge - maybe 10% of a charge for my MacBook Air in a pinch. It's good to have and something I can carry on me at all times. It's a nice safety net. It took a bit to fully charge but I dont care as long as it does its job

You can definitely feel the quality of this little charger. It’s small and light and made very well. And it works! I would highly recommend it. Definitely rates 5 stars.

Very compact and charges quickly. A must have for travelers or people that work long shifts away from a desk. A+++

This is the second power bank over owned and honestly, it kind of sucks compared to my previous one. Only charges my phone about 30%. Which is better than nothing I guess. Pros: it's thin, lightweight, has attached cable.