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INIU Power Bank Review: Compact, fast-charging power for travel

INIU Power Bank, Smallest 20000mAh 45W PD Portable Charger Fast Charging with Built in Cable, USB C in&Out Battery Pack, Travel Essential, Mobile Phone Power Banks for iPhone 17 16, Samsung, iPad etc
4.7
[Industry-Leading Safety]  Trusted by over 38 million users; premium materials and included 3-Year INIU Care warranty.
[45W Full-Speed Charging]  Supports PD and QC; charges iPhone 16 to 63% and S24 Ultra to 73% in 25 minutes.
[Compact 20000mAh Capacity]  High-density TinyCell battery delivers big capacity without bulk — perfect for travel.
[Built-In USB-C Cable]  Integrated cable prevents forgotten cords for effortless, grab-and-go charging.
[Week-Long Battery Power]  20,000mAh can charge iPhone 15 up to 3.6 times for extended trips.
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Portable charger designed to give reliable, high-speed top-ups for phones and tablets. The INIU Power Bank promises peace of mind for travellers and commuters who need dependable charging without bulk. Is a 20,000mAh pack with a built-in cable the easiest way to stay powered on the move?

⚡ At a Glance
  • Charging Performance: Up to 45W output, supports PD, QC and other fast-charging protocols for rapid replenishment
  • Best for: Frequent travellers and commuters who need multiple full charges between outlets
  • Not ideal for: Users who prioritise ultra-small keyring chargers over higher-capacity packs

20,000mAh capacity in a compact body with TinyCell high-density battery technology. Built-in USB-C cable and the ability to charge up to three devices simultaneously.


Rapid Top-ups – Thanks to 45W PD full-speed charging

45W output supports Power Delivery (PD), Quick Charge (QC) and other fast-charging standards, allowing high-power transfer for compatible devices. Product descriptions report charging an iPhone 16 to around 63% and a Samsung S24 Ultra to around 73% in roughly 25 minutes.

Meaningful battery percentage returns during short journeys or between meetings, so devices reach usable levels quickly.

High Capacity Without the Bulk – With TinyCell high-density battery

TinyCell high-density battery technology increases energy density, letting 20,000mAh capacity sit in a smaller chassis than conventional cells. The design aims to break the usual size-to-capacity trade-off.

Carry the equivalent of several full phone charges while still slipping the pack into a bag or larger pocket, useful for multi-day travel or long commuting weeks.

Grab-and-Go Convenience – With built-in USB-C cable and multi-device charging

Integrated USB-C cable offers in and out functionality while the unit supports simultaneous charging on multiple outputs, allowing three devices to draw power at once. The built-in lead removes the need to carry a separate cable for compatible devices.

Leave chargers at home without losing flexibility, and top up a phone, tablet and accessory at the same time when outlets are scarce.

✨ The 4 Key Reasons for INIU Power Bank
  1. 45W Full-Speed Charging — Charges compatible phones to roughly 63% in 25 minutes
  2. TinyCell High-Density Battery — Fits a 20,000mAh pack into a much smaller shell
  3. Built-in USB-C Cable — Never forget a charging cable when leaving home or office
  4. Triple-Device Charging — Run phone, tablet and accessories simultaneously without slowing down
📋 Technical Details at a Glance
  • Brand: INIU
  • Category: Power bank / Portable charger
  • Capacity: 20,000mAh
  • Max output: 45W
  • Built-in cable: USB-C built-in cable
❓ Frequently Asked Questions

Q: Can the charger handle laptops as well as phones?

A: Supports up to 45W output and PD, so it can charge phones and some laptops that accept 45W Power Delivery.

Q: How many full charges can I expect for an iPhone?

A: Product descriptions state the 20,000mAh capacity can recharge an iPhone 15 up to about 3.6 times, and can take an iPhone 16 to around 63% in 25 minutes using fast charge.

Q: Is a cable included or do I need to bring one?

A: A built-in USB-C cable is included and the USB-C port supports both input and output, removing the need to carry a separate USB-C lead.

🏆 Our Verdict

Ideal for travellers, commuters and anyone who needs reliable multi-day charging without bulky kit. The combination of 45W fast charging, a compact 20,000mAh TinyCell battery and a built-in USB-C cable makes for practical everyday convenience. While cost will vary, long-term value comes from the 3-Year INIU Care warranty and high-density battery design, which should keep the pack useful for regular travel and heavy use.