Advertising Disclosure Smallest Powerful Power Bank Comparison - July 2025
5 Best Smallest Powerful Power Bank In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.7Exceptional | 2 Best Value  9.6Exceptional | 3  9.3Excellent | 4  9.2Excellent | 5  9.1Excellent |
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ModelINIU 65W 20000mAh Portable Charger for Laptop & Phone, Mini Power Bank with PD QC Fast Charging (USB-C in/Out) - High Capacity Electronics Battery Pack for iPad, Samsung, Travel, Camping, Outdoor | Model INIU Power Bank, Smallest 22.5W 20000mAh Portable Charger, USB C In & Out Fast Charging Mini Battery Pack, Mobile Phone Powerbank Compatible with iPhone16 15 14 13 12 Pro Max Samsung S23 iPad Tablet | Model Charmast Mini Power Bank Fast Charging, 20W 10000mAh Small Portable Charger USB C with PD3.0, LED Display Rechargeable Portable Battery Pack for iPhone, Samsung, Pixel, Other Smartphone, Tablets | Model INIU Power Bank with Built-in USB C Cable, 22.5W 20000mAh PD Fast Charging Portable Charger Type C, Smallest & Lightweight External Battery Pack for iPhone 16/15 Pro Samsung S25 Google iPad Travel etc | Model IAIGG Power Bank 20000mAh, Smallest Fast Charging Mini Portable Charger,USB C Input and Output Battery Pack for iPhone 15/14/13, Samsung, Xiaomi, Huawei, and More (20000 mah) |
BrandINIU | Brand INIU | Brand Charmast | Brand INIU | Brand IAIGG |
Reviews | Reviews | Reviews  | Reviews | Reviews |
Tech Specs | ||||
product dimensions11 x 2.9 x 7.1 cm 420 g | product dimensions 10.4 x 7 x 2.9 cm 380 g | product dimensions 10.02 x 6.7 x 1.72 cm 165.84 g | product dimensions 11.5 x 7.3 x 2.9 cm 400 g | product dimensions 10.4 x 6.6 x 1.8 cm 330 g |
batteries1 Lithium Polymer batteries required. included | batteries 1 Lithium Polymer batteries required. included | batteries 2 Lithium Polymer batteries required. included | batteries 1 Lithium Polymer batteries required. included | batteries 1 Lithium Polymer batteries required. included |
Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.7
1INIU19% OffINIU 65W 20000mAh Portable Charger for Laptop & Phone, Mini Power Bank with PD QC Fast Charging (USB-C in/Out) - High Capacity Electronics Battery Pack for iPad, Samsung, Travel, Camping, Outdoor
Main highlights- What You Get: INIU 20000mAh power bank*1, 100W USB-C to USB-C Cable 30cm*1, welcome guide*1, industry-leading 3-Year iNiu Care, plus lifetime technical support.
- Power Ready Phone & MacBook in 25Mins: A must-have for multi-device users, this power bank provides up to 65W high-speed charging for two devices simultaneously. In just 25 minutes, it can charge your MacBook Air 13" to 41% and charge your Phone 15 to 56%. It also supports Samsung Super Fast Charging 2.0.
- Market's Smallest 65W 20000mAh: Equipped with iNiu's industry-first high-density TinyCell and groundbreaking HyperStack technology, this power bank breaks the size limits of high-capacity chargers. No more bulky bricks, just compact portability.
- From INIU--the SAFE Fast Charge Pro: Experience the safest charging with over 38 million global users. At INIU, we use only the highest-quality materials, so we do have the confidence to provide an industry-leading 3-Year iNiu Care.
- Even Wider Compatibility: Unlike the market’s most power banks incapable of charging low-current accessories, INIU PD3.0 Super portable charger can work with not only all the phones, tablets but your smaller devices like AirPods, Bluetooth headphones, fitness trackers, smartwatches, etc.
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9.6
2INIU30% Off
INIU Power Bank, Smallest 22.5W 20000mAh Portable Charger, USB C In & Out Fast Charging Mini Battery Pack, Mobile Phone Powerbank Compatible with iPhone16 15 14 13 12 Pro Max Samsung S23 iPad Tablet
Main highlights- What You Get: INIU 20000mAh portable charger*1, Cable*1, user manual*1, INIU industry-leading 3-year iNiu Care and lifetime technical support.
- Power All Your Devices: Equipped with 2 USB-C input/output ports and 1 USB-A output port, it can power outdoor camping equipment from smartphones to GPS, camping lights, etc. And supports low-current device charging mode.
- Pocket-Sized, Travel Wise: This power bank can easily fit into your pocket, chest bag, and other small bags and can also be taken on a plane, making it perfect for travel.
- Market's Smallest, Mega Power: The tiniest 20,000mAh power bank, measuring just 4.5" diagonally yet powerful enough to charge your iPhone 16 four times and Galaxy S23 three times.
- 22.5W Fast Charging: Get 75% power in just 25 minutes. No need to hold the power bank all the time, keep up with your fast-paced life!
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9.3
3Charmast
Charmast Mini Power Bank Fast Charging, 20W 10000mAh Small Portable Charger USB C with PD3.0, LED Display Rechargeable Portable Battery Pack for iPhone, Samsung, Pixel, Other Smartphone, Tablets
Why we love it
Compact and lightweight design.
Fast charging capabilities.
Wide device compatibility.
Main highlights- [Wide Compatibility]Widely compatible with iPhone 15, 14, 13, 12, 11 series, as well as Samsung S23, S22, S21 series, along with other Android smartphones and various types of Micro devices. USB A and C output ports are compatible with different types of power cables, ensuring charging for a majority of electronic device.
- [Recharging in 3 Ways] Three charging ports ( Micro, USB-C, for iPhone), it can recharge in as fast as 3.5 hours. That means you can recharge in the morning and feel free to go out in the afternoon. Please note that it requires 6 hours to recharge for iPhone input port.
- [LED Display] Built-in LED screen can display the battery level at any time. It enables you to have absolute control over the battery level and can be seen as a second battery indicator for your phone.
- [Fast Charging Power Bank] USB A and C fast charging can charge your iPhone 12 or Samsung S21 up to 52% within just 30 minutes. It is especially suitable for daily work and travel, offering more convenience compared to the original charger.
- [10000mAh Smallest Portable Charger] Charmast smallest power bank, only 3.95 inch * 2.63 inch * 0.68 inch and 5.85oz. Compact size makes it easier to put into your pocket or bag, without adding any burden to your travels.
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Features
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Consumer Reviews
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Popularity
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Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
