The INIU P63 Cougar power bank is shaking up the portable power market with its revolutionary design. This review dives into the impressive features of this 25,000mAh powerhouse, focusing on its surprisingly compact size, significantly smaller than competitors like Anker's 24K. We'll explore its fast charging capabilities, supporting both PD and QC protocols, and its ability to simultaneously charge multiple devices, including laptops, at up to 100W via USB-C. Prepare to be amazed by how much power this little device packs.This in-depth review examines the INIU P63 Cougar's performance, durability, and overall value. We'll delve into real-world testing results, showcasing its charging speeds and capacity in practical scenarios. We'll also discuss its build quality and premium feel, alongside the reassuring 3-year warranty. Finally, we'll weigh its slightly higher price against the compelling combination of features, ultimately determining whether it earns its place as a top contender in the competitive power bank arena.
Pros And Cons
- Very small size compared to similar capacity power banks.
- 25,000 mAh capacity.
- Fast charging (PD 2 and 3, QC 2 and 3).
- Can charge three devices simultaneously.
- One USB-C port outputs up to 100W, allowing charging of high-power devices like MacBooks.
- Charges an iPhone 15 Pro from 0 to 60% in around 30 minutes.
- Can charge an iPhone four times before depleting.
- Comes with a carrying case.
- 3-year warranty.
- Allowed on airplanes.
- Requires a separate USB-C cable that supports at least 100W to charge high-power devices at full speed. The included cable does not support this.
- LCD display is simpler than some competitors' colored displays.
Read more: OUKITEL P2001 PLUS Review: Best Budget Portable Power Station?
Size Comparison: INIU P63 Cougar vs. Anker Power Bank
The INIU P63 Cougar's most striking feature is its incredibly compact size. The video directly compares it to an Anker 24K power bank and an iPhone 15 Pro, showcasing a significant size difference. The INIU is considerably smaller than both, making it exceptionally portable.

This diminutive size is a game-changer for carrying a high-capacity power bank. Imagine easily slipping it into a jacket or even jeans pocket without any noticeable bulge. The smaller size is a significant advantage over larger competitors.
Charging Speed and Capacity
The INIU P63 Cougar boasts fast charging capabilities, supporting PD 2 & 3 and QC 2 & 3 protocols. This ensures significantly faster charging times compared to standard power banks. In testing, it charged an iPhone 15 Pro from 0 to 60% in just over 30 minutes.
With a massive 25000mAh capacity, the power bank can charge an iPhone 15 Pro approximately four times before needing a recharge. This high capacity coupled with fast charging makes it ideal for frequent travelers and those with multiple devices.
Multi-Device Charging and High-Wattage Output
The power bank offers simultaneous charging for up to three devices. This means you can charge your phone, tablet, and even a laptop simultaneously. While the reviewer primarily charges one device at a time, the multi-device capability adds versatility.
A standout feature is its ability to output up to 100W via USB-C. This allows it to fast-charge even power-hungry devices like MacBook Pros (using a compatible 100W+ USB-C cable) and the reviewer's ROG Ally gaming handheld, enabling boost mode for maximum performance.
Build Quality, Warranty, and Overall Impression
The INIU P63 Cougar's build quality is praised for its durability and premium feel. The reviewer expresses high satisfaction with its sleek design and ability to blend with other tech accessories.

Backed by a 3-year warranty, it shows the manufacturer's confidence in the product's longevity. The combination of small size, high capacity, fast charging, and a warranty makes it a strong contender in the power bank market.

Conclusion: Is the INIU P63 Cougar Worth It?
The INIU P63 Cougar is a truly impressive power bank. Its compact size is revolutionary, offering a 25000mAh capacity in a package smaller than many lower-capacity competitors. The fast charging speeds and high-wattage output further enhance its appeal.
While the price point is slightly higher than some alternatives, the combination of features and the 3-year warranty make it a worthwhile investment, particularly for those prioritizing portability and fast charging. This power bank earns a strong recommendation.