Charmast26800mAh Slim Portable Charger Power Bank, 15W Fast Charging Battery Pack, Travel Essentials Compatible with iPhone 16/16 Pro/16 Pro Max, iPhone15/14/13/12 Series, iPad, Samsung etc

So far so good. Most critical reviews complain about the size or weight or charging time. These all are due to the batteries capacity and safety for charging. I wouldn't trust anything smaller to have the capacity or anything not costing much, much more to charge any faster safely. While 26,800 seems unlikely (someone who took one apart said it was actually only 20,000mAh), it does hold a lot of power and seems well made. From the reviews the failure rate seems relatively low. The smooth texture is somewhat non-slip. The color-coding of the USB A ports are confusing; USB 1 (blue) is 5V-2.4A, USB 2 and 3 (blue and orange respectively) are both 5V-3A. Huh?

Works great. Holds a lot. Charging speed is quick. Good value for my hard-earned money. Provides enough power to charge my multiple devices while long-distance hiking. Really like it, and yes, do recommend.

Takes forever to fully charge the external battery (9 hours), but when it is, it’s extremely powerful. It’s able to fully charge my iPad Pro 12 inch as if it was plugged into the wall. It’s slim, sleek, and while it is a little heavy, it’s well made. Definitely worth it.

I bought this device after I started using my mobile phone more, including professionally, and it became important to have backup power on the go or during power outages, etc. I chose this produce both because of its high capacity and the form factor, which looked like it was probably cell-phone sized, allowing it to fit neatly behind my mobile device.The good:On the power front, it didn't disappoint - while charging this up, or while using it to charge your device, it has four LED lights indicating charge level, and it seems like each of these is good for a full cell phone charge from 0% (using a modern Google Pixel phone). So when fully charged, you can absolutely use this for your phone with no wall power for several days.It's also pleasantly thin and simple in design. It does what it's supposed to do very well and doesn't overwhelm you with unnecessary features. Using this device is essentially stress-free.The bad:I rate this overall at 4 stars because the form factor is somewhat large. Although thin, it is longer and wider than I'd like. For some people it may be fine, there are phones the size of this, but if you're like me then some phones are just too big, more closely resembling a small tablet than a phone. This is about the size of those phones. So it does not match the form factor of my phone as I'd hoped - it is not pocket size at all, and that will impact how I can travel with it. Still, knowing this I would buy it again because it works well and I know of no other better device at a smaller form factor right now.The other issue I had which was also minor has to do with the charging cables it comes with: one is the old (large) standard USB to micro USB, and the other is the old (large) standard USB to type-C. They're quite short and ideal for using this power bank to charge your device. Sadly, they're less than ideal for charging the power bank itself. It would have been good if it came with a type-c to type-c cable, since that is now essentially the new standard cable connector type, and it would be nice if that cable was a little longer than the others.Conclusion:While my pros are shorter than my cons, make no mistake this is a great device. It's just that it's easier to explain what's good about it and it takes more words to explain the relatively minor areas in which it could be improved. I would suggest this power bank for a friend or relative, and would buy again if I needed another for some reason (if four days or so of power weren't enough).

- Comes with ~75% charge out of the box- It is expectedly wide but thin for a 26800 mah power bank- The size seems good for travel alleviating the need to bring an extra power bank- Multiple charging options is nice- The 5v/3A USB ports (x2) are great and fast- Charging the battery from a standard 5v/2.4 Amp adapter seems slow compared to a 10,000 mah power bank as what I have been using for years but this is expected due to its size. No complaints there.Comes with:- 1 pouch- 1 short USB A to Micro USB cable- 1 short USB A to USB C cable- Instruction Manual

Ready to use on arrival with a 75% charge. Comes with a versatile array of connectors for most any device. Recharging needs a bit of patience, unless you add a 15W or 20W fast charging block to minimize the recharging time. Recently lost the first Charmast I purchased in 2021, and did not hesitate to order the same. Company has restyled the power bank with an option for a smaller unit that can fit comfortably in your hand, pocket or an accessory case sleeve. So dependable that I buy fewer batteries. If batteries drainout it is a saving grace to grab the Charmast and hardly lose a beat. Warranty and service for 24 months. Strongly recommend this power bank.