

⚡ Stay powered, stay ahead — no cords, no compromises.
The Charmast 20000mAh Power Bank is a premium portable charger featuring 4 built-in cables and 4 extra ports to charge up to 6 devices simultaneously. With 22.5W fast charging, it powers devices to 50% in just 30 minutes. Its large capacity supports multiple full charges for modern smartphones and tablets, while a smart LED display provides precise battery status. Designed for professionals on the move, it combines durability, portability, and convenience in one sleek package.




















| ASIN | B0CJBQBB7F |
| Amperage | 2 Amps |
| Battery Capacity | 20000 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 74 Grams |
| Battery capacity | 20000 Milliamp Hours |
| Best Sellers Rank | 447 in Climate Pledge Friendly ( See Top 100 in Climate Pledge Friendly ) 13 in Mobile Phone Portable Power Banks |
| Brand | charmast |
| Brand Name | charmast |
| Colour | Black-20000mAh |
| Compatible Devices | Smartphone, Smartwatch, Tablet |
| Connector Type | Micro USB |
| Connector type | Micro USB |
| Country of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 3,930 Reviews |
| Is Electric | Yes |
| Item Dimensions | 16 x 7.2 x 1.9 centimetres |
| Item Dimensions L x W x Thickness | 16L x 7.3W x 1.9Th centimetres |
| Item Weight | 340 Grams |
| Manufacturer | Dong guan Utopia-Originality Technology Co., Ltd |
| Model Number | C2065 |
| Number of Batteries | 2 Lithium Polymer batteries required. (included) |
| Number of Ports | 3 |
| Other Special Features of the Product | Built In Cable, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection |
| Portable | Yes |
| Power Source | Corded Electric |
| Product Warranty | 2 |
| Reusability | Rechargeable |
| Special feature | Built In Cable, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection |
| Unit Count | 1.0 Count |
| Voltage | 9 Volts (DC) |
Z**A
One of My Favourites!
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.
P**Y
Excellent
Excellent power bank. The built-in cables are very convenient and save carrying extras. Fast charging works well, and the 20,000mAh capacity easily gives multiple full charges. Solid build and clear battery display. Highly recommended. So good i bought another !
D**E
Reliable and fast-charging power bank
I’m really pleased with this power bank. It charges my phone super fast that you can actually see the battery jumping up quickly, which is a lifesaver when you’re low on power. I was super impressed with the speed at which it charged my phone that I had to time it every time I used it. I use an iPhone and in 10 minutes, it gives me a 10-20% bump on my battery depending on how low it is. At the same time, the battery life on the power bank depletes by just 3% in that time. The large capacity means I can get several full charges before needing to top it up again, and the built-in cables plus the digital display showing the remaining battery are really handy touches. The only downside is that while it’s excellent at charging devices, it takes quite a while to recharge the power bank itself. Even with a decent charger, you’ll need patience. It’s also a bit heavier than smaller models, but that’s to be expected with the bigger battery. Overall, it’s a reliable, high-capacity power bank that does exactly what I need. Just plan ahead when it comes to recharging the unit itself.
E**I
Impressive & fast charger
Holds a charge for a long time & doesn't take long to charge up my laptop or phone. I use it when I have a full day out & about, & having various charging connector types is a great help. I have found this to be a really good purchase for a very reasonable price.
L**T
Super fast charger
This is a serious charger. Its a little heavy but it charges my phone quicker than when I have my phone plugged in at home. A great charger to take out with you (as long as you have a bag to carry it as it would be too heavy for your pocket!) and feel confident that you won't run out of charge. Can do several full phone charges on a single charge.
A**N
Brilliant device
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.
B**N
Nice powerbank
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
S**H
I love this power bank
I love this power bank. Fast charges my mobile, convenient as the leads are attached, great value for money, good quality.
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