Product Overview
The INIU 45W Portable Charger is a high-capacity, ultra-compact 20,000mAh power bank designed for travelers, outdoor enthusiasts, and busy professionals who need reliable power on the go. Despite its impressive capacity, it’s engineered to be the smallest in its class, thanks to advanced high-density TinyCell battery technology. This power bank delivers fast, safe charging for modern devices, including iPhone 16 and Samsung S25 series, with support for multiple fast-charging protocols. Whether you’re commuting, flying, or exploring, this portable charger ensures your devices stay powered throughout the day—and beyond.
Key Features
- 45W Full-Speed Charging: Delivers up to 45W output with support for Power Delivery (PD), Quick Charge (QC), and other major fast-charging standards. Charge an iPhone 16 to 70% in just 25 minutes or a Samsung S25 Ultra to 80%—ideal for quick top-ups between meetings or before a flight.
- Ultra-Compact 20,000mAh Design: Powered by INIU’s industry-first high-density TinyCell battery, this power bank packs a full 20,000mAh capacity into a remarkably small and lightweight form. It’s designed for maximum portability without sacrificing power, making it easy to slip into a backpack, purse, or carry-on.
- Built-In USB-C Cable: A built-in USB-C cable eliminates the hassle of carrying extra cords. Simply grab the power bank and go—perfect for charging your phone directly or recharging the bank itself via the same port.
- Triple-Device Charging: Charge up to three devices at once with multiple output ports. Keep your phone, tablet, and earbuds powered simultaneously, whether you’re on a long trip or working remotely.
- Smart Temperature Monitoring: INIU’s built-in safety system includes intelligent temperature control that adjusts output to prevent overheating. It delivers maximum power when your device battery is low, then reduces output to protect battery health and improve efficiency.
- Airline Approved: Compliant with TSA regulations, this 20,000mAh power bank (under 100Wh) is safe to carry on airplanes. Travel with confidence knowing it meets international flight safety standards.
- Long-Lasting Power for a Week: With a full 20,000mAh capacity, it can charge an iPhone 16 up to four times or a tablet once—making it ideal for multi-day trips without access to outlets.
Technical Specifications
- Battery Capacity: 20,000mAh
- Output Power: Up to 45W (supports PD, QC, and other fast-charging protocols)
- Recharge Time: 3.9 hours with a 27W charger; 6.8 hours with a 15W charger (recharge via USB-C port only)
- Dimensions: 4.5 x 2.9 x 1.1 inches
- Weight: 11.5 ounces
- Charging Ports: Built-in USB-C cable + additional output ports for multi-device charging
- Compatibility: iPhone 16, Samsung S25 series, tablets, earbuds, and other USB-C and USB-powered devices
- Safety Features: Smart Temperature Monitoring System, overcharge protection, short-circuit prevention
- Airline Compliance: TSA-approved (≤100Wh)
Benefits & Use Cases
This power bank is built for real-world use. Frequent travelers will appreciate its compact size and airline approval, allowing it to fit easily in carry-on luggage. Outdoor adventurers benefit from its week-long power supply, keeping phones and GPS devices charged during hikes or camping trips. Professionals on the move can rely on fast charging to keep their iPhone or Samsung device ready during back-to-back meetings. The built-in USB-C cable ensures you’re never without a charging solution, even when you forget your cables. With the ability to charge three devices at once, it’s also perfect for families or group trips where multiple gadgets need power simultaneously.
Important Notes
Actual charging capacity may vary due to energy loss from heat and voltage conversion—typically, a 20,000mAh power bank delivers 12,000–14,000mAh to connected devices. To calculate estimated charges, use the formula: (Power bank capacity × 65%) ÷ Device battery capacity. For example, (20,000mAh × 0.65) ÷ 3,279mAh (iPhone 14) ≈ 4 full charges. Always recharge the power bank using the USB-C port for optimal speed and safety. The included safety system protects against overheating, overcharging, and short circuits, ensuring long-term reliability.
