Product Overview
The INIU 20000mAh Portable Charger redefines portable power with a perfect blend of high capacity, compact design, and intelligent fast charging. Engineered for users who demand reliability without compromise, this power bank features a 45W PD output that efficiently powers smartphones, tablets, laptops, and other USB-powered devices on the go. Built with premium materials and featuring advanced safety systems, it delivers consistent performance whether you’re commuting, traveling, or exploring the outdoors. With its built-in USB-C cable, digital battery display, and industry-leading 3-Year INIU Care warranty, this power bank is designed to keep your devices charged—wherever life takes you.
Key Features
- 45W Full-Speed Charging: Supports PD (Power Delivery), QC (Quick Charge), and other fast-charging protocols to deliver rapid recharging. Charge your iPhone 16 up to 70% in just 25 minutes and Samsung S25 Ultra up to 80%, minimizing downtime and keeping you connected.
- Built-In USB-C Cable: Eliminate the hassle of carrying extra cables with the integrated USB-C cord. Simply connect your device directly—no adapters or forgotten accessories. This grab-and-go convenience enhances portability and reduces clutter in your bag or pocket.
- New-Gen Ultra-Compact Design: Despite its impressive 20,000mAh capacity, the power bank leverages high-density TinyCell battery technology to achieve a surprisingly slim profile. It offers maximum energy storage in a compact size, making it easy to carry without sacrificing power.
- Digital Battery Level Display: Stay informed with a clear LED digital display that shows real-time battery levels. Plan your usage confidently and avoid unexpected shutdowns by monitoring remaining charge at a glance.
- Safety-First Engineering: Equipped with a Smart Temperature Monitoring System that dynamically adjusts power output to prevent overheating. This protects both the power bank and your connected devices, ensuring safe and reliable charging every time.
- TSA-Approved for Air Travel: Meets Transportation Security Administration regulations (≤100Wh ≈ 27,027mAh), allowing you to carry it on airplanes without restrictions. Perfect for travelers and frequent flyers.
Technical Specifications
- Capacity: 20,000mAh
- Output: Up to 45W (PD, QC compatible)
- Input/Recharge Time: ~3.9 hours with a 27W charger; ~6.8 hours with a 15W charger
- Dimensions: 4.5 x 2.9 x 1.1 inches
- Weight: 11.5 oz
- Battery Type: High-density TinyCell
- Ports & Cables: USB-C input/output with built-in USB-C cable
- Battery Indicator: Digital display
- Warranty: 3-Year INIU Care
Benefits & Use Cases
This power bank is ideal for professionals, travelers, outdoor enthusiasts, and anyone who relies on their devices throughout the day. Its 20,000mAh capacity can charge an iPhone 16 approximately four times, making it a dependable companion for long trips, back-to-back workdays, or weekend getaways. The built-in cable means you never have to hunt for a cord, while the compact, lightweight design fits easily into bags, pockets, or carry-on luggage. Fast charging support ensures your phone reaches usable levels quickly, so you spend less time waiting and more time being productive or entertained. Whether used at home, in transit, during commutes, or on outdoor adventures, it delivers reliable power when you need it most.
Frequently Asked Questions
Why does my power bank provide fewer charges than expected?
External batteries typically supply only 60%-70% of their rated capacity to devices due to energy loss from voltage conversion and circuit heat. Therefore, a fully charged 20,000mAh INIU power bank may deliver between 12,000–14,000mAh to your device, depending on compatibility and conditions.
How do I calculate how many charges I’ll get?
Use the industry-standard formula: (Power bank capacity × 65%) ÷ Device battery capacity = Approximate number of charges. For example, with an iPhone 14 (3,279mAh): (20,000 × 0.65) ÷ 3,279 ≈ 4.0 full charges.
How long does it take to recharge the power bank?
Recharge time depends on the wall charger used:
– 27W charger: ~3.9 hours
– 15W fast charger: ~6.8 hours
Note: Always recharge via the USB-C port—do not attempt to recharge through any other connection.
Why doesn’t it charge at max power all the time?
Our Smart Temperature Monitoring System intelligently manages power delivery. It provides maximum output when your device is low on battery, then reduces power as needed to prevent overheating and protect long-term battery health. This ensures both speed and safety.
Is it allowed on airplanes?
Yes. Our 20,000mAh power bank meets TSA regulations (≤100Wh ≈ 27,027mAh), making it completely legal and safe to carry on commercial flights without prior approval.
Important Notes
- Actual usable capacity to devices is typically 60%-70% of the total rated capacity due to conversion losses. Expect 12,000–14,000mAh delivered to your device from a full 20,000mAh charge.
- Recharge the power bank only through the USB-C port—other methods are not supported and may damage the unit.
- Recharge times vary based on the charger used. For fastest recharge, use a 27W charger.
- Maximum output is provided when devices are low on battery and then intelligently reduced to maintain safety and efficiency.
- The package includes one INIU 20000mAh Portable Charger with built-in USB-C cable. No additional cables or accessories are included unless specified in the listing.
