INIU 45W Portable Charger, Smallest 20000mAh Power Bank with Build in USB-C Cable, Fast Charging USB C in&Out Battery Pack, Travel Phone Charger for iPhone 17 16 15 Air Samsung S25 S24 Google iPad etc

Price: $39.99 - $31.34
(as of Feb 06, 2026 16:55:05 UTC – Details)

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

4.5 out of 5 stars 1,570

4.5 out of 5 stars 30,591

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4.5 out of 5 stars 1,925

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Price

$31.34$31.34

$26.97$26.97

$24.29$24.29

$22.99$22.99

$20.99$20.99

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.
45W Full-Speed Charging for iPhone 16 & Samsung S25: 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%.
New-Gen Ultra-Compact 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.
Built-In USB-C Cable, Grab & Go: Never forget your cable again with the built-in USB-C cable—charge with ultimate convenience.
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!
Charge 3 Devices at Once: Low on battery? Charge up to 3 devices simultaneously—your phone, tablet, and more—all at once.