Charmast 20000mAh Power Bank with 4 Built-in Cables, 22.5W Fast Portable Charger for iPhone, Android, iPad, No Extra Cords Needed for Travel, Work, Emergency

This is one of my favourite power banks. I love that all the cables are attached, so I don’t need to worry about fiddling around or carrying extra cords, it’s super convenient and hassle-free. It’s really powerful, and once fully charged it lasts a long time, easily getting me through multiple charges. It’s a bit on the bulky side, but honestly I don’t mind because the performance and convenience more than make up for it. Overall, a great power bank that I’d happily recommend.

This portable battery is an ideal size: it's about as large a capacity as you can take on to an aeroplane, but physically is a nice size and a shape that would slip into a pocket or bag very nicely. It has a reassuring (but not back breaking) weight, it feels solid and well constructed. The Charmast displays battery charge as a percentage which is much better than the 3-4 little winking lights many other batteries have. The display is located under the surface of the battery case, which is cool. It also has a little green symbol which lights up when quick charge is engaged. The battery uses USB-C for fast charging up. It has two charging USB-A outputs and one quicker charge USB-A socket (colour coded for easy of recognition). You can also quick charge a device via the USB-C socket. This means you can a total of four devices on charge at once! If you charge multiple items you lose the ability to quick charge, but this is a reasonable tradeoff for being able to charge four devices at once (I'm doing this now with a phone, a tablet, a digital camera and a pair of headphones, and it's working flawlessly). There are safety circuits to prevent overheating (the battery did not appear to warm up noticeably while working) and also turns off charging when you devices are full. Battery life seems to be about right for the stated capacity, but I will wait to see how it beds in over repeated cycles. All in all this a a fabulous piece of kit for a very reasonable price, especially when its on offer via Amazon. Recommended!

Not as good as Anker, seems to lose power over time, but a lot cheaper. Will definitely last a few years

Absolutely love this power bank! The 23800mAh capacity keeps my smartphone and tablet fully charged multiple times, and the Quick Charge 3.0 & PD 20W feature charges devices super fast. The LED display is really handy to see the exact battery level at a glance. It’s compact, durable, and works perfectly with all my devices. Perfect for travel, work, or daily use — a must-have portable charger! ✅ Massive 23800mAh capacity ✅ Fast charging with Quick Charge 3.0 & PD 20W ✅ LED display for battery level ✅ Portable, reliable, and compatible with multiple devices Highly recommend — a high-capacity, fast, and dependable power bank!

Not to heavy and can use phone while recharging Six charges from 40% per full powerbank charge and powerbank takes quite a long time to recharge I just do this overnight Very useful having all the wires attached

This is a truly brilliant device. I bought the higher capacity one and am so pleased I did. It’s a manageable weight and seems to last forever! No loss of charge if not used and will fill an iPhone several times over - useful if you are taking loads of photos and using the battery up more quickly than usual. It’s incredibly quick to charge and the convenience of not needing separate leads is huge (it’s yet to be seen how well the built in leads last). I can walk around using my phone as it charges if needs be. Or sit over a coffee while it slurps up the juice for its battery. My daughter snaffled mine when visiting her far away so on return home I immediately bought myself another. I wouldn’t go anywhere without it now.

This was a purchase that came out of the blue. I've had power banks for ages, and find them oh so handy when away from normal charging situations. However, whilst purchasing something else, this flashed up as a "hurry up, you'll save loads of money, but get on with it" type deal. Given that, after perusing the specs, this power slab blew my other main workhorse out of the water, I thought, well why not? And what a great decision! Not only was I able to donate my older bank to a family member, yet to be initiated and entranced by the secret mysteries of the bankaged power (and how grateful they were - it went to a loving home) but this is a beast. Not only is there a fearsome FOUR count them FOUR outputs that can happily run simultaneously, but it just goes on and on. And rarely does it seem to need to require charging. Much devilry is afoot, I'll be bound, this is the stuff of which the ancients foretold! If you check out the advertising blurbage, there are all kinds of configurations for those who need to charge many devices at once. I mainly use mine for emergency/handy portable power. As you can see in the terrible low res highly professional image taken mere minutes ago, serious gaming can strain a PS4 Controller, so I'll grab my Charmast and charge whilst playing. At this very moment, I have one output to the controller, and one to my phone, which was looking a little anaemic, and the power bank takes all this in its stride. Needless to say I'm extremely happy with this surprise investment. It recharges extremely quickly, and that's from a very underpowered 10-port USB hub that barely manages to creep above 0.5A. It has proven itself worthy of a place in my highly organised mass of techno junk I keep next to me at all times. The convenience is one thing, but that feeling of a safety net when you can't remember what cable is to hand, will it reach, can I still recharge my phone and play Fallout 4 if all the ports on my hub are occupied - all that anxiety is soothed away as the Charmast is unsheathed and rigged up. It's no slouch when it comes to charging either - in the last ten minutes or so, my Moto phone has leapt from 69% to 81%, even with some hungry apps operating and the PS4 Controller on another port. I really like it. True, it's not a thin, lightweight thing like my traveling power bank, but then that one's a "Dire Emergency Break Glass To Sound Fire Alarm" type job, simply to get a black mirrored phone or collapsed tablet to flicker back into life. Whereas the Charmast is the big beastie, ready to be unleashed when danger looms. (Phone up to 92% now). Whether you choose the Charmast or not, everyone should have an emergency power bank in their life, if only for dire emergencies. But if you are looking for some heavy duty power to fire everything up and have enough juice spare to keep your tablet running as you enjoy a season of Bob's Burgers on Netflix afterwards, this is the power slab for the job.

Very good power bank. Seems well made. Gets rid of need to carry multiple cables. It’s fairly slow to charge itself but it charges devices plugged into it quickly. Only thing that would make it better is if you could charge the power bank and use it charge devices at the same time but that functionality is not supported.