Are you tired of constantly searching for outlets to charge your devices? The INIU Cougar P63 and B63 power banks offer a solution, boasting an impressive 25,000mAh capacity each. This comprehensive review dives deep into both models, comparing their features, performance, and overall usability. We'll explore their build quality, charging speeds, portability, and the unique features that set them apart. Whether you're a videographer needing reliable power on location, a traveler looking for a portable charging solution, or simply someone who needs to keep multiple devices juiced up throughout the day, this review will help you determine which INIU Cougar power bank is the perfect fit.This detailed analysis covers everything from the initial unboxing experience to weeks of real-world testing. We'll examine the differences between the P63 and B63, highlighting their respective strengths and weaknesses. Discover which model offers the best balance of size, capacity, and additional features. Find out if these power banks truly live up to their impressive specifications and whether they are worth the investment for your power-hungry devices. Prepare to learn everything you need to know before making your purchase decision.
Pros And Cons
- Small enough to fit in a pocket
- Doesn't take up much space in a bag
- High capacity
- Up to 100 Watts USBC output
- Lightweight (14 oz)
- Reliable
- Thickness may be a matter of preference
- High capacity
- Up to 100 Watts USBC output
- Includes a holder for phone/tablet
- Lightweight (16 oz)
- Reliable
- Thickness may be a matter of preference
Read more: OUKITEL P2001 PLUS Review: Best Budget Portable Power Station?
Unboxing and Initial Impressions
The INIU Cougar P63 and B63 power banks arrived, boasting a hefty 25,000mAh capacity each. The packaging was sleek and included all the essentials: USB-C cables, a carrying pouch, and user manuals. First impressions were positive – they felt sturdy and well-made.
Right out of the box, the size difference between the P63 and B63 was apparent. The B63 is significantly larger than the P63, but both units feel surprisingly lightweight considering their capacity. The build quality is excellent on both.
Features and Specifications
Both the P63 and B63 offer a 25,000mAh capacity, providing approximately 91.25 watt-hours of usage time. Each power bank features two USB-C ports, with one doubling as an input for charging. A standard USB-A output is also included for compatibility with older devices.

A power button activates the LCD display, showing the remaining battery level. The B63 includes a unique built-in phone/tablet holder which is absent on the P63, a noteworthy difference.

Real-World Usage and Performance
Over several weeks of continuous use, both power banks have consistently impressed. I've used them to charge my laptop, phone, camera, and other devices simultaneously without any issues. The high-speed charging capabilities are a major benefit.

I particularly appreciate the ability to power my camera directly via USB-C during extended recording sessions, preventing unexpected shutdowns. This is a game-changer for videography. The reliability of these power banks is truly outstanding.
Portability and Design
The P63's compact size makes it incredibly pocket-friendly. Even the B63, while larger, remains manageable for travel, especially with its convenient holder. Both are surprisingly light, weighing only 14 oz (P63) and 16 oz (B63), respectively.

While the thickness of both power banks might be a minor drawback for some, it's a trade-off for their substantial capacity. Overall, the design is practical and durable, suitable for everyday use.
Conclusion and Verdict
The INIU Cougar P63 and B63 are exceptional power banks offering incredible capacity and reliable performance. Their ability to simultaneously charge multiple devices at high speeds is a significant advantage. The B63's built-in holder is a welcome addition.

While the thickness might be a preference issue, the advantages far outweigh this minor detail. Both are highly recommended for anyone needing portable power for various devices. The P63 is ideal for everyday carry, while the B63 is best suited for users who need a little extra space for larger devices.