Rank #3 in Best Power Bank 2026: 10 Ranked on Real Delivered Capacity
Charmast Power Bank 10000mAh with 4 Built-in Cables
Price and rating as shown on Amazon when we collected them. Both change.
The Charmast is the cheapest pack in this ranking and the only one that solves the cable problem by building cables in. The listing describes four built-in cables and a 10000mAh capacity, which means you can leave the house without a separate charging lead and still top up most phones twice or so.
The trade-off is capacity rather than features: 10000mAh is half the energy of the packs around it here, so it suits a day bag rather than a weekend away. At the time of collection it carried 15,685 ratings at 4.5 stars. Everything here comes from the Amazon listing rather than our own testing.
How those 15,685 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Connector Type | 3 Inputs(USB-C Port / USB-A Cable / Micro-USB), 6 Outputs(3 Output Cables/1 USB-C /2 USB-A Ports) |
|---|---|
| Battery Capacity | 10000 Milliamp Hours |
| Other Special Features of the Product | 6 Outputs, 3 Inputs, 4 Bulit-in Cables, Gift Idea, Portable, Pocket-size, Lightweight, Indicator Lights, Compact, Slim, Travel Essentials, Camping Essentials, Working Essentials, Gaming Essentials, Daily Essentials |
| Voltage | 5 Volts |
| Power Source | Corded Electric |
| Amperage | 3 Amps |
| Number of Ports | 4 |
| Output Current | 2.4 Amps |
| Battery Charge Time | 4.5 Hours |
| Portable | Yes |
| Compatible Devices | All smartphones, compatible with iPhone 17 Pro / Pro Max, iPhone 17 / Air, iPhone 17e / iPhone 16e, iPhone 16 Pro / Pro Max, iPhone 16 / 16 Plus, iPhone 15 Pro / Pro Max, iPhone 15 / 15 Plus and all iPhone series; compatible with Samsung Galaxy S26, S26+,S26 Ultra, Galaxy S25 Ultra, S25 FE, S24, S23, S22, S21, Galaxy Z Fold7, Galaxy A55, A56, A35, A16, A15 and all series; Huawei, Google Pixel and more., Compatible with iPad, Headphone/Camera, Tablet |
| Compatible Cellular Phone Models | Apple iPhone 17, Google Pixel 10, Huawei P20, Motorola A1800, Samsung Galaxy S20 |
| Compatible Phone Models | Samsung Galaxy S20, Iphone 14, 11, 11 Pro, 11 Pro Max, Huawei P20 |
| Reusability | Rechargeable |
| Antenna Location | Camera, Clock, Gaming Controller, Phone, Tablet, Travel Essentials, Camping Essentials, Working Essentials, Gaming Essentials, Daily Essentials, Watch |
| Item Weight | 240 g |
| Item Dimensions L x W x Thickness | 14.4L x 6.7W x 1.8Th centimetres |
| Unit Count | 1.0 count |
| Item Dimensions | 14.4 x 6.7 x 1.8 centimetres |
| Battery Weight | 72 Grams |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“My bf bought me one of these for Christmas and then I bought my niece one for her birthday. It’s fab as comes with so many ends attached for different things so no carrying a wire around to be able to use, I get 2 full charges on my iPhone 11 when the powerbank is fully charged. The only downside is the time it takes the powerbank to charge which is hours. Each full charge of my phone takes about a hour. It has a display that shows you how much the bank is charged and what percent is left to use. Also love the pink colour. I’ve since bought another for a present but the one that gives 4 full charges instead of 2. Also read that if you use a lead into it instead of the ones attached it charges phone faster. Definitely recommend.”
Verified purchase“I picked up this Charmast power bank for daily use, and overall I’m very pleased with it. The standout feature is the built-in cables. It includes multiple connectors USB-C, Lightning, and Micro-USB directly on the unit, so there’s no need to carry extra cables. This makes it incredibly convenient for travel, work, or keeping in a bag for emergencies.The 10000mAh battery capacity is solid for its size and weight. The LED display is another nice touch, showing the remaining battery percentage clearly so there’s no guessing how much power is left.ProsBuilt-in cables reduce clutter and make charging on the go much easierLED screen clearly displays remaining battery levelCompact and lightweight; fits easily into pockets or small bagsCan charge multiple devices at once with up to six outputsConsThe 10000mAh capacity is good, but not ideal for frequent tablet charging or powering multiple devices repeatedlyCharging speed isn’t as fast as premium power banks, though it’s perfectly fine for everyday useOverall:A practical, affordable portable charger that delivers exactly what you need without extra accessories.Excellent value for the price.”
What it is up against
The rivals it was ranked against in Best Power Bank 2026: 10 Ranked on Real Delivered Capacity.
Questions people ask
What capacity is listed?
10000mAh.
How many cables are built in?
Four, as named in the title.
Do I still need to carry a cable?
The listing describes four built-in cables, but also includes USB ports.
What brand is it?
Charmast, per the listing.
How many ratings does it have?
15,685 at the time of collection, averaging 4.5 stars.
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