charmast 20000mAh Portable Charger with Built in Cables, 22.5W Travel Power Bank Fast Charging, USB C Cell Phone Battery Pack for iPhone 16/15/14/13/12/11 Series, iPad, Samsung, Android, Tablet
Original price was: $39.99.$31.99Current price is: $31.99.
Product Features:
[product_features]
Product Description:
Product description
1 Widely Compatibility
2 Portable Blue
3 Airplane Allowed
4 Travel Essentials
5 Share Power
Recharge Conventiently
Recharge Conveniently Via Attached Recharging Cord:
Recharge your powerbank via its attached recharging cord conveniently;
No need to get another cable, no more struggling to find a charging cable anywhere;
Fully recharged around 12 hours (via built-in USB-A port); 6 hours (via built-in USB-C port);
Recharge Faster
Recharge Faster Via USB C Input:
Recharge your powerbank via its USB C input;
You need to get or use your A to C or C to C cable separately to recharge your powerbank;
Fully recharged around 6 hours (Your charger block and your seperated charging cable required 18 Watts or above);
1 Package
2 Gifts Ideas
Capacity 20000mAh Micro Input 5V-2A/9V-2A/12V-1.5A USB C Input 5V-2A/9V-2A/12V-1.5A USB A Cable Input 5V-2A USB C Cable Input 5V-2.6A/9V-2A/12V-1.5A USB C Cable Output 5V-3A/9V-2.22A/12V-1.67A Cable Output (for iPhone) 5V-2.4A/9V-2.22A Micro Cable Output 5V-2.4A USB A 1 Output 5V-2.4A USB A 2 Ouput 4.5V-5A/5V-4.5A/9V-2A/12V-1.5A Recharging Time 6 hours (via built-in USB-C port); 12 hours (via built-in USB-A port) Comptibility Compatible with Almost All cellphones. Compatible with iPhone & iPad series, compatible with all Android cellphones, tablets. Compatible with all 5V/9V/12V USB devices Fetures Portable Charger with Built in cables, multiports for multi devices charging Package 1 pc portable charger with built in cables
Can this portable charger charge headphones, watches, fans and more?
Yes, the low current mode of portable charger can charge these or other devices. Method: Press the ON/OFF button for 5-10 seconds, then release it and the LED digits will rotate.
How do I charge the battery pack? Do I need to purchase a different cord?
You may recharge the powerbank via its attached recharging cord, or you may get a seperated A to C or C to C cable to recharge the powerbank.
Can this portable charger be taken on an airplane?
Yes, portable chargers are allowed in carry-on luggage, but not in checked baggage.
Does this support PD/QC fast charging?
Yes, it can fast charge for Android and iPhone. Far greater than the wall charger.
How long it will take to fully recharged the power bank?
6 hours (via built-in USB-C port); 12 hours (via built-in USB-A port)
Stay Powered Anywhere: This 20K portable charger delivers 3-4 full phone charges – perfect for camping, flights, or emergencies. Fits easily in backpacks to keep devices alive through weekend trips, festivals, or work travel.
3-in-1 Built-in Cables: No more hunting for cables! Power bank Built in USB-C, Lightning and Micro-USB cables – simply plug in to charge instantly. It eliminates cord clutter while keeping all your devices powered anywhere. Never face a dead phone again!
Works with Virtually All Your Devices: Charge iPhones (all models), Samsung Galaxy/Pixel phones, iPads, AirPods, Kindles and most tablets with this universal power bank. No more carrying multiple chargers – one solution powers your entire tech life.
22.5W PD Fast Charging – 50% in 30 Minutes!: Get a 50% charge faster than you can finish your coffee break. Perfect for emergency power before meetings or when rushing out the door.
Exact Battery % – No More Guessing Games: Unlike basic 4-light indicators, the digital display shows precise remaining power (0-100%) – just like your phone’s battery icon.Never get stranded with sudden dead power again
Your Personal Charging Station – 6 Devices at Once!: 6 Outputs! Power your phone, tablet, earbuds and smartwatch simultaneously – no more choosing which device gets charged first. Perfect for professionals with multiple gadgets.
Double the Power, Only 35% Heavier: Battery pack 20,000mAh (2X capacity of standard chargers) in just 6.3 x 2.85 x 0.72 in – only 35% heavier than 10K models but holds twice the energy. Fits anywhere a paperback book would.
Flight-Friendly Portable Power: This power bank meets all airline safety standards, making it the perfect travel companion. Always pack in your carry-on (never checked bags).
What will you get: 1 x power bank, 1 x use manual, 1 x travel pouch. 24 Month’s support and lifetime technical support.
Price: $39.99 - $31.99
(as of Jan 07, 2026 17:44:26 UTC)
Specification: charmast 20000mAh Portable Charger with Built in Cables, 22.5W Travel Power Bank Fast Charging, USB C Cell Phone Battery Pack for iPhone 16/15/14/13/12/11 Series, iPad, Samsung, Android, Tablet
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13 reviews for charmast 20000mAh Portable Charger with Built in Cables, 22.5W Travel Power Bank Fast Charging, USB C Cell Phone Battery Pack for iPhone 16/15/14/13/12/11 Series, iPad, Samsung, Android, Tablet
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Original price was: $39.99.$31.99Current price is: $31.99.
Emily –
My favorite portable charger. We’ve bought several of these.
These chargers are fantastic. We’ve bought several because our sons keep stealing them and we travel a good bit. They are a bit slow to charge – I’d recommend leaving them on overnight. But they charge other devices faster than any other charger I know, and the built-in cords are incredibly handy. At this point, most of our devices are USB-C, but then we will have that one random Lightning cable device, and that one random device with a kindle port. This has made my “emergency chord drawer” obsolete. Highly recommend.
John Thao –
Reliable Power Bank With Built In Cables
We grabbed this Charmast portable charger because someone in our family always seems to hit 5 percent battery at the worst possible time. This thing has already earned its place in the backpack. The built in cables are super handy. I don’t have to hunt around for a charging cord or worry about forgetting one at home. You just plug in and go.It holds a ton of power. We’ve gotten multiple (2-3) full charges out of it before needing to plug the charger back in, which has been great for travel days and long outings. It is a little heavier than the tiny pocket sized chargers, but that makes sense with how much capacity it has. I’d rather carry a little extra weight and know I am not scrambling for an outlet.It charges phones and tablets at a good speed, not instant, but definitely faster than those older cheap battery packs. The built quality feels solid too. Nothing flimsy or rattly. Overall, this has become our go to backup battery for trips, kids’ activities, and just everyday life when batteries run low at the wrong time.We bought 4 of them one for each person in our family and it they have all been working great for the past few weeks.
Tashel Carr –
Sturdy, Efficient, and Worth It
The power bank arrived securely packaged and looks great. It feels sturdy, charges devices quickly, and the battery lasts as advertised. Overall, a reliable and high-quality product.
Dreama –
Amazing!
This power bank is the perfect backup to support all of your devices. It is nice and compact making it easy to carry in anything from a small clutch/purse for me, to a small backpack or even a diaper bag for a child. The slim design makes it easy to carry anywhere, including by tiny hands, during use by my young, six-year old son. It is about the size of a phone but packs SO much power for its compact dimensions. It is capable of charging my son’s iPad, both of our iPhones, and even my laptop computer SEVERAL times with a SINGLE charge. I only have to recharge the device itself about once every 2-3 days, and it, in return will power all of our devices several more times, before it’s internal capacity is completely diminished and expended.It also charges with amazing speed. In the time it has taken me to write this review, the battery power on my phone (iPhone 15) has literally increased to 100% from where it was (20%-30%) at the onset of preparation of this review. The 1-100% battery life indicator is very convenient, letting you know how much power you have remaining to be consumed . I love the fact that it is designed to INCLUDE the FOUR most common charging tips, already built in, eliminating the need to carry around extra bulky cords in order to simply facilitate the use the device. My son and I can literally and quite easily recharge our devices at the same exact time. It does also include two USB ports to connect different devices.I love this product so much, that I just bought a second, so that my son and I can each have our very own, when we venture out of the house separately. I find this to be such a great value for the money, that I have already decided that I will be purchasing more units as gifts for my son’s teacher, and friends and loved ones for the holidays this year.I have included photos with my review to help you reference the size of the product. There is a green power bank next to a green iPhone 15. The blue power bank is connected to an iPhone 13 mini.
Brenda –
Good charger
I actually bought it twice. Charges your device up 4 times. It comes with all the cords you may need. The USB is included as well and charges with the use of a brick or USB port. The unit does take quite some time to fully charge, but holds that charge well. It’s about the same size as my Samsung Galaxy.
Lan –
You would not be disappointed
This is possibly, no, this IS one of my best Amazon buys. This thing lasts so long. I can get around 4-6 80% charges on my phone for the battery-pack. It also charges fairly fast, i just leave it to charge over night. This thing also charges things so fast, i prefer to charge my phone using this than a cord. I personally have really made good use of this charger and strongly believe that if you are looking for a portable battery pack then you SHOULD buy this one. Also the size is perfect, i can have my phone plugged into it and be able to fit both into my pocket (it does look a little weird when i do it tho).I havnt tried other battery packs but again, you would not be disappointed if you were to buy this one.
george buerger –
Built in cables are awesome
It’s perfect for I wanted. LOVE the built in cables !! Powers iPhones FAST and doesn’t take much usage. Mac computer takes a while and drains a lot of the battery. The recharge is SLOW. But the size and price make up for any negatives My wife has bought one after I showed her mine
aton that –
Works well for less than a year.
I bought this charger in Dec 2024, it was fast charging and able to charge iPad Pro more than once but now, Nov 2025 not even a year, it does not work properly. it can’t even fully charge the iPad Pro which still has 40% power left.
Chagalix –
This power bank is very powerful and chages all you usb devices extremely fast. The built in cables with different usb connectors makes it very handy. The only inconvenience is that it is a little heavy but given the power it carries, I still have it with me everydsy in my bag. FIVE STARS!
Shihab –
Nice build quality good and working perfectly all wear
Talal –
ممتاز و سرعه الشحن جيده
Amazon Customer –
A life saver! I bring this with me everywhere and it’s perfect. It has the cords built in so you don’t need to bring cords with you and the battery life is good as well. I can charge my phone several times from 0% – 100% before the power bank is low and it charges your electronics very quickly. Yes the charge for the power bank itself is slow but that’s understandable since it holds so much battery life. It does have some weight to it but that’s also understandable since it’s a quality product. It does come with a sleeve to put the power bank inside. I would 100% recommend this power bank, I would definitely repurchase!
Mom of busy household –
I bought this about 6 months ago and it’s still holding up well. I use it a lot especially when I am travelling. It is great to always have a backup battery on hand.Plus- charges fast, built in cables, still working well.Minus – wish it had a built in plugin attachment, a little heavier than my previous one I ownedOverall, I’d recommend because it has held up better than other battery packs I have owned. All cables are still working well. No issues after a lot of use.