INIU Cougar P63 100W High Capacity Laptop 25000mAh Power Bank Review

INIU has built a reputation for practical, well‑priced charging gear, and the Cougar P63 is one of its most ambitious releases. It combines a 25,000mAh high‑capacity battery with 100W Power Delivery, multi‑device output and a compact frame designed for travel, field work and long days away from the wall. Following the impressive P50 and SnapGo Air battery packs, and a recent great interview with the team,Cubed3 spent time with the meaty P63 to see whether this power bank delivers the performance and convenience that heavy users expect from a premium portable charger.

Design and Build Quality

Despite its capacity, the P63 is noticeably smaller than most 25,000mAh laptop‑class power banks. INIU’s TinyCell and HyperStack architecture uses EV‑grade high‑density cells to reduce the footprint by around 30%, resulting in a compact, solid unit that feels reassuringly dense at roughly 400g. That weight reflects genuine capacity rather than inflated figures. The rubberised finish provides grip, the digital display is crisp and responsive, and the detachable 100W USB‑C cable avoids the long‑term failure issues common with fixed‑cable designs. The black model reviewed keeps things understated, while red and yellow variants offer brighter alternatives.

Charging Performance and 100W Output

The 100W USB‑C output is the P63’s defining feature. INIU’s own figures claim a MacBook Pro 14″ can jump from 20% to 72% in 30 minutes, while an iPhone 17 Pro Max can reach 77% and a Galaxy S26 Ultra up to 91% in the same window. Real‑world performance tracks closely with these claims when using the included 100W cable. The second USB‑C port offers up to 45W, and the USB‑A port provides 18W for older devices. The P63 can fast‑charge multiple devices at once, although the combined output tops out at 80W, which is expected for a pack of this size.

Capacity, Recharging and Endurance

The 25,000mAh capacity comfortably supports multi‑day use. INIU estimates an additional 17 hours of wireless web browsing on a MacBook Pro 13″, and the pack easily stretches across long trips or shoots without needing a recharge. A key improvement is the 1.4‑hour recharge time when using a suitable 65W charger, which significantly reduces downtime between sessions.

Multi‑Device Support and Use Cases

The P63 is built for users who carry a mix of devices. It can charge a laptop, phone, and tablet simultaneously, and its broad protocol support covers everything from iPhones and Pixels to DJI drones. One of the strongest additions is its true play‑and‑charge performance for handheld gaming. Unlike lower‑powered banks that merely slow battery drain, the P63’s 100W output allows devices like Steam Deck, ROG Ally, and Legion Go to gain charge even during AAA gameplay, adding up to four extra hours of use. For creators, the capacity can replace several camera batteries during long shoots, making it a practical field companion.

Everyday Use and Portability

INIU has labelled the P63 as an “airline‑approved mobile studio,” and the 25,000mAh capacity sits comfortably within carry‑on limits for most airlines. The compact frame makes it easier to pack than many high‑capacity competitors, and the detachable 100W cable avoids the fragility of fixed‑cable designs. The digital display removes guesswork, and the overall build feels ready for regular travel. The weight is noticeable, but it reflects the genuine capacity and high‑density cells rather than unnecessary bulk.

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