--- product_id: 654333333 title: "INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping" brand: "iniu" price: "¥11995" currency: JPY in_stock: true reviews_count: 11 category: "Iniu" url: https://www.desertcart.jp/products/654333333-iniu-20000mah-power-bank-smallest-fast-charging-22-5w-portable store_origin: JP region: Japan --- # 22.5W fast charge ultra-compact pocket size 20000mAh mega capacity INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping **Brand:** iniu **Price:** ¥11995 **Availability:** ✅ In Stock ## Summary > 🔌 Power that fits your fast-paced life—anywhere, anytime. ## Quick Answers - **What is this?** INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping by iniu - **How much does it cost?** ¥11995 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/654333333-iniu-20000mah-power-bank-smallest-fast-charging-22-5w-portable) ## Best For - iniu enthusiasts ## Why This Product - Trusted iniu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power Up in a Flash:** Charge up to 75% in just 25 minutes with blazing 22.5W fast charging—because your time is money. - • **Pocket-Sized Powerhouse:** The smallest 20,000mAh power bank on the market, designed to slip effortlessly into your daily carry. - • **Triple-Port Versatility:** Dual USB-C in/out plus USB-A ports let you power multiple devices simultaneously—stay connected everywhere. - • **Travel-Ready & TSA Approved:** Compact and lightweight, perfect for flights, camping, and on-the-go hustle without the bulk. - • **Smart Digital Display & Durable Design:** Real-time battery status at a glance plus a clever cable clip handle for ultimate convenience and style. ## Overview The INIU 20000mAh Power Bank is the market’s smallest high-capacity portable charger, delivering rapid 22.5W fast charging through dual USB-C and USB-A ports. Compact and lightweight at just 320 grams, it easily fits in pockets or bags, making it ideal for travel and outdoor use. With a smart digital display and a 3-year warranty, it’s engineered for professionals who demand reliable, on-the-go power for multiple devices including the latest iPhones, Samsung Galaxy models, AirPods, and more. ## Description Free delivery and returns on eligible orders. Buy INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping at desertcart UK. Review: A decent little power bank that does the job well. - Definitely smaller than other power banks I've had over the years. While it is still reasonably heavy, this probably comes with the territory - it's a battery charger after all so needs to pack a bit of a punch. I like the display on the front showing how much charge is in the actual power bank. What appeals to me most of all is the clever way in which the small cable clips into the small plastic holder to become a carrying handle. Good design idea. Charging speed is probably about average for this sort of device, but the battery, so far, seems to last quite well. A decent sized power bank overall, I think ideal for travelling. Review: best 2AH power bank and so small seriously sturdy and carry cable USB C is a nice touch RECOMMEND - I have bought 3 of these they're great. It's half the size of power banks with this power; it's actually 20000mAh. Charges my phone 4000mAh, headphones 550 mAh and vape 550mAh for 4 days if you want to look after it and not degrade the 2 10000mAh cells then when you get, it fully charge it, then fully drain it, after that try and keep it beween 25% - 85% and it will last for years obviously it gonna get fully charged and drained sometime but try not to leave it full or empty for too long ## Features - 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. - 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. - 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! - 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. - What You Get: INIU 20000mAh portable charger*1, Cable*1, user manual*1, INIU industry-leading 3-year iNiu Care and lifetime technical support. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DCNC4N6F | | Antenna Location | For ALL 【iPhone】iPhone 17, 17 Plus, 17 Pro, 17 Pro Max, iPhone 16, 16 Plus, 16 Pro, 16 Pro Max, iPhone 15, 15 Plus, 15 Pro, 15 Pro Max, iPhone 14, 14 Plus, 14 Pro, 14 Pro Max, iPhone13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPho… | | Battery Capacity | 20000 Milliamp Hours | | Battery Cell Type | Lithium Polymer | | Battery Weight | 320 Grams | | Battery capacity | 20000 Milliamp Hours | | Battery cell composition | Lithium Polymer | | Best Sellers Rank | 226 in Mobile Phone Portable Power Banks | | Brand | INIU | | Brand Name | INIU | | Colour | Black | | Compatible Devices | For ALL 【iPhone】iPhone 17, 17 Plus, 17 Pro, 17 Pro Max, iPhone 16, 16 Plus, 16 Pro, 16 Pro Max, 15, 15 Plus, 15 Pro, 15 Pro Max, iPhone 14, 14 Plus, 14 Pro, 14 Pro Max, iPhone13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, … | | Connector Type | Output: USB-C*2+USB-A*1 | | Connector type | Output: USB-C*2+USB-A*1 | | Country of Origin | China | | Customer Reviews | 4.6 out of 5 stars 362 Reviews | | Included Components | INIU Power Bank * 1, USB C Cable * 1, User Manual * 1 | | Item Dimensions | 10.4 x 7 x 2.9 centimetres | | Item Dimensions L x W x Thickness | 10.4L x 7W x 2.9Th centimetres | | Item Weight | 313.5 Grams | | Manufacturer | Shenzhen Topstar Industry Co.,Ltd. | | Manufacturer Part Number | P51 | | Model Number | P51-E2 | | Number of Batteries | 1 Lithium Polymer batteries required. (included) | | Number of Items | 1 | | Number of Ports | 3 | | Other Special Features of the Product | Digital Display, Fast Charging, Flashlight, Lightweight, Pocket Size | | Output Wattage | 22.5 Watts | | Portable | Yes | | Power Source | Corded Electric | | Product Warranty | 3 Years Warranty | | Reusability | Rechargeable | | Special feature | Digital Display, Fast Charging, Flashlight, Lightweight, Pocket Size | | Unit Count | 48.0 count | | Warranty Type | Limited | ## Product Details - **Battery capacity:** 20000 Milliamp Hours - **Brand:** INIU - **Colour:** Black - **Connector type:** Output: USB-C*2+USB-A*1 - **Special feature:** Digital Display, Fast Charging, Flashlight, Lightweight, Pocket Size ## Images ![INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping - Image 1](https://m.media-amazon.com/images/I/71YhFjQuZxL.jpg) ![INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping - Image 2](https://m.media-amazon.com/images/I/61gaL-Rd3YL.jpg) ![INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping - Image 3](https://m.media-amazon.com/images/I/711eq5xmrdL.jpg) ![INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping - Image 4](https://m.media-amazon.com/images/I/61ariJ2wbTL.jpg) ![INIU 20000mAh Power Bank, Smallest Fast Charging 22.5W Portable Charger, USB C In&Out Mini Powerbank, Phone Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad etc Travel & Camping - Image 5](https://m.media-amazon.com/images/I/71kpVySsbfL.jpg) ## Questions & Answers **Q: Why my power bank provide fewer charges than expect?** A: Usually an external battery could supply 60%-70% power to other devices. About 30-40% of the battery capacity is lost in circuit heat and voltage conversions.So a fully charged INIU 20000mAh power bank can offer 12000-14000 mAh to your devices. **Q: How to calculate the possible number of charges?** A: "Industry-standard formula: (Power bank capacity × 65%) ÷ Device battery capacity ≈ Number of Charges. eg. (20,000mAh Powerbank × 0.65) ÷ 3279mAh iPhone14 battery ≈ 4.0 charges" **Q: How long does it take to 100% recharge?** A: "It depends on the power of the wall charger used 20W charger - 5.4 hrs, 15W fast charger - 6.6 hrs. Note: Please recharge via the USB-C port." **Q: Why doesn’t it charge at max power all the time?** A: INIU power banks feature a Smart Temperature Monitoring System that adjusts output to prevent overheating. It delivers max power when your device is low, then reduces power to protect your battery and improve efficiency. **Q: Is it allowed on airplanes?** A: Yes, our 20000mAh power bank meets the regulations of TSA(Transportation Security Administration) for carring board(≤100wh≈27,027mAh). ## Customer Reviews ### ⭐⭐⭐⭐⭐ A decent little power bank that does the job well. *by S***4 on 10 April 2026* Definitely smaller than other power banks I've had over the years. While it is still reasonably heavy, this probably comes with the territory - it's a battery charger after all so needs to pack a bit of a punch. I like the display on the front showing how much charge is in the actual power bank. What appeals to me most of all is the clever way in which the small cable clips into the small plastic holder to become a carrying handle. Good design idea. Charging speed is probably about average for this sort of device, but the battery, so far, seems to last quite well. A decent sized power bank overall, I think ideal for travelling. ### ⭐⭐⭐⭐⭐ best 2AH power bank and so small seriously sturdy and carry cable USB C is a nice touch RECOMMEND *by T***M on 24 July 2026* I have bought 3 of these they're great. It's half the size of power banks with this power; it's actually 20000mAh. Charges my phone 4000mAh, headphones 550 mAh and vape 550mAh for 4 days if you want to look after it and not degrade the 2 10000mAh cells then when you get, it fully charge it, then fully drain it, after that try and keep it beween 25% - 85% and it will last for years obviously it gonna get fully charged and drained sometime but try not to leave it full or empty for too long ### ⭐⭐⭐⭐⭐ Best portable charger I’ve had in years! *by F***N on 26 June 2026* Great product and amazing customer service! My charger had an issue with the power button misclicking and the torch coming on by mistake. Nice and compact and light weight, fits into even my small sling bag for easy carrying. The included usb-c to usb-c cable is incredibly useful as well! Lasts me a good few weeks before needing to recharge it. ## Frequently Bought Together - 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 - INIU Power Bank, 45W PD Lightest 10000mAh Portable Charger, USB C in&Out Fast Charging Battery Pack, Mobile Phone Powerbank Compatible with iPhone 16 15 14 13 12 Samsung S22 S21 Google iPad etc --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/654333333-iniu-20000mah-power-bank-smallest-fast-charging-22-5w-portable](https://www.desertcart.jp/products/654333333-iniu-20000mah-power-bank-smallest-fast-charging-22-5w-portable) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-07*