INIU 20000mAh Power Bank, Small 45W PD Fast Charging Portable Charger with Built-in USB C Cable, Flight-Safe Travel External Phone Battery Pack for iPhone 17 Pro Max Samsung S26 iPad etc, Black

Product description

1 Packaging List

2 Safety System

Why my power bank provide fewer charges than expect?

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.

How to calculate the possible number of charges?

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

How long does it take to 100% recharge?

It depends on the power of the wall charger used:

27W charger – 3.9 hrs, 15W fast charger – 6.8 hrs.

Note: Please recharge via the USB-C port.

Why doesn’t it charge at max power all the time?

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.

Is it allowed on airplanes?

Yes, our 20000mAh power bank meets the regulations of TSA(Transportation Security Administration) for carring board(≤100wh≈27,027mAh).

Comparison

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Customer Reviews

4.4 out of 5 stars 1,301

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4.5 out of 5 stars 718

4.5 out of 5 stars 2,324

4.5 out of 5 stars 81,058

Price

$29.99$29.99

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$24.29$24.29

$24.99$24.99

$23.99$23.99

Size / Weight

4.5 x 2.9 x 1.1in / 11.5oz

4.1 x 2.8 x 1.2in / 11.1oz

4.4 x 2.7 x 0.7in / 6.4oz

4.3 x 2.7 x 0.7in / 6.3oz

4.3 x 2.7 x 0.7in / 6.4oz

Cable Included

Built-in USB-C Cable

Detachable USB-C Cable

Built-in USB-C Cable

Built-in USB-C Cable

Detachable USB-C Cable

Battery Level Display

Digital Display

Digital Display

Digital Display

PawPower Display

PawPower Display

For Phone

≈4 Charges

≈4 Charges

≈2 Charges

≈2 Charges

≈2 Charges

For Tablet

≈2 Charges

≈2 Charges

≈1 Charge

≈1 Charge

≈1 Charge

Airline Approved

✔

✔

✔

✔

✔

Recharge Time

3.9h

5.4h

1.7h

2h

2h

From INIU–the SAFE Fast Charge Pro: Experience the safest charging with over 38 million global users. At INIU, we use only the highest-grade materials, so we do have the confidence to provide an industry-leading 3-Year INIU Care.
New-Gen Ultra-Small 20,000mAh: Powered by the industry-first high-density TinyCell battery, this compact power bank defies size limits. Enjoy high capacity without the bulk, perfect for on-the-go convenience— giving travelers, students, commuters, office users, and family users reliable backup power for weekend trips, workdays, school days, road trips, and long days away from outlets.
45W Full-Speed Charging for iPhone & Samsung: Delivering up to 45W output, this power bank supports PD, QC, and other fast-charging protocols. Charge your iPhone 16 to 70% in just 25 minutes, or your Samsung S25 Ultra to 80% — helping busy commuters, students, and business travelers get quick top-ups before work, class, meetings, flights, or any moment when staying plugged in is not an option.
Built-In USB-C Cable, Grab & Go: Never forget your cable again with the built-in USB-C cable — keeping charging simple for daily carry, school bags, work bags, airport travel, and business trips while reducing loose cable clutter for students, commuters, travelers, and daily users.
Recharge Once, Power for a Week: Ideal for travelers and outdoor enthusiasts, the 20,000mAh charges your iPhone 16 up to 4 times. Recharge once and power through the week! — a reliable backup for travelers, families, and heavy phone users during long flights, weekend getaways, vacation travel, full workdays, and days when outlets are hard to find.
Charge 3 Devices at Once: Low on battery? Charge up to 3 devices simultaneously—your phone, tablet, and more—all at once — making it practical for families, group travelers, office users, students, and multiple-device users during travel, work, school, road trips, or shared daily charging.
Great Compatibility: This INIU power bank with the remarkable 5000mAh battery designed for iPhone air, iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone 16, iPhone 16 Plus,iPhone 16 Pro, iPhone 16 Pro Max,iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 13, iPhone 13 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 12, iPhone 12 mini, iPhone 12 Pro, and iPhone 12 Pro Max etc