# INIU Power Bank 20000mAh, 22.5W PD3.0 QC4.0

Source: https://www.ranked10.co.uk/tech/best-power-bank/iniu-20000mah-22-5w-power-bank
Ranked #1 in "Best Power Bank 2026: 10 Ranked on Real Delivered Capacity": https://www.ranked10.co.uk/tech/best-power-bank

- Price: £22.41 (checked on Amazon UK on 2026-09-10)
- Amazon rating: 4.6 from 31,486 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B07YPS5JC5?tag=ranked10-21

The INIU is the most reviewed power bank in this ranking, and it sits at the price where most people should start looking. The listing describes a 20000mAh battery with 22.5W output over USB-C Power Delivery 3.0 and Quick Charge 4.0, which is enough to charge a phone several times over or to top up a tablet.

The capacity figure is the one to read with care on any power bank: rated mAh is measured at the cell, and the usable energy that reaches a device is lower after conversion losses, so a 20000mAh pack does not deliver 20000mAh to your phone. At the time of collection it carried 31,486 ratings at 4.6 stars, the strongest evidence base here. Everything here comes from the Amazon listing rather than our own testing.

## Specification

| Field | Value |
|---|---|
| Connector Type | Fast Charging USB C Input & Output |
| Battery Capacity | 20000 Milliamp Hours |
| Other Special Features of the Product | Fast Charging |
| Voltage | 5 Volts |
| Power Source | Battery Powered,Corded Electric |
| Amperage | 3 Amps |
| Number of Ports | 3 |
| Output Current | 3 Amps |
| Portable | Yes |
| Compatible Devices | Cellphones [iPhone, Samsung, Google, Huawei, Xiaomi etc.]. [Sumsung] S25/ S24/ S23/ S22/ S21/ S20 ultra/ S20/ S10 Plus/ S10/ S9/ S8/ Note 20 Plus/ 20/ 10 Plus/ 10/ 9/ 8, And more, [iPhone] iPhone 17, 17 Plus, 17 Pro, 17 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max,15/15pro/15plus/15pro Max14/ 14Pro/ 14 Max/ 13/ 13 Pro/ 13 Pro Max/ 12/ 12 Pro/ 12 Pro Max/ SE/ 11 Pro Max/ 11 Pro/ 11/ SE/ 10/ XS/ XS Max/ XR/ X/ 8/ 8 Plus. Eearbuds [Airpods, Google Pixel Buds] etc. |
| Compatible Phone Models | iPhone 14, iPhone 13, iPhone 12, iPhone 11, iPhone X Pro Max, Samsung S21, Samsung S20, Huawei |
| Reusability | Rechargeable |
| Antenna Location | Charger |
| Warranty Type | INIU’s industry-leading 3-year warranty, plus life-time technical support. |
| Item Weight | 365 g |
| Item Dimensions L x W x Thickness | 13.5L x 7W x 2.5Th centimetres |
| Unit Count | 1.0 count |
| Item Dimensions | 13.5 x 7 x 2.5 centimetres |
| Battery Weight | 320 Grams |
| Brand Name | INIU |

## Questions people ask

**What capacity is listed?**

20000mAh.

**What charging speeds are named?**

22.5W output over USB-C PD 3.0 and Quick Charge 4.0.

**Does capacity mean usable charge?**

No, rated mAh is measured at the cell and conversion losses reduce what reaches the device.

**What brand is it?**

INIU, per the listing.

**How many ratings does it have?**

31,486 at the time of collection, averaging 4.6 stars.