Upgrade Your iPhone with This 240W Power Bank: Ultimate Charging in 2025

ZDNET's Comprehensive Power Bank Insights

The Denvix PowerX 4-in-1 250W power bank is available on Amazon for $179. It boasts an exceptional display and a robust capacity to power an iPhone four times. Weighing in at 2.2 pounds, it is quite substantial, and its black finish is prone to fingerprints.

$179.99 at Amazon

A Remarkable Discovery: Denvix PowerX

In my experience reviewing various power banks, primarily from well-known manufacturers, it is uncommon to find a standout product from an unfamiliar brand. That changed when I encountered the Denvix PowerX, a robust power bank engineered specifically for laptops. I was genuinely impressed by its performance and build quality.

Also: The best power banks you can buy

Unmatched Capacity and Compliance

The Denvix PowerX is a formidable power bank, boasting a substantial 25,000mAh/90Wh capacity. This specification ensures it can keep your laptop and other gadgets operational while remaining below the 100Wh TSA limit, making it convenient for air travel. To put this into perspective, it can fully charge a MacBook Air more than once and an iPhone over four times.

Feature	Specification
Capacity	25,000mAh/90Wh
Weight	2.2 pounds
USB-C Ports	Dual, 140W each
USB-A Port	36W max output
Wireless Charging Pad	Up to 15W

Powerful Output and Versatile Charging

In terms of power output, the PowerX does not disappoint. It includes dual USB-C ports capable of 140W input/output individually and 250W output when used together, a USB-A port with a maximum output of 36W, and a wireless charging pad delivering up to 15W. Although the wireless pad isn't Qi2-compatible and maxes out at 7.5W for iPhones, this limitation is minor.

The variety of ports enables remarkable flexibility in charging multiple devices. Additionally, the PowerX supports pass-through charging, permitting the power bank to charge while simultaneously charging other devices. When utilizing pass-through, the power is divided, with a maximum of 200W (100W input, 100W output).

Exceptional Design and Safety Features

Everything about this power bank exemplifies quality—from its advanced technology to its sleek piano black finish. While the finish appears stylish, it is susceptible to fingerprints and dust, making it prudent to keep a cloth handy. Performance-wise, the PowerX aligns with its specifications, efficiently dissipating heat during significant usage.

Intelligent Display and User-Friendly Design

The Denvix PowerX excels in safety, incorporating over-charge, over-current, over-discharge, short-circuit, and high-temperature protections—a hallmark of modern power banks. A standout feature is its color OLED display, which provides detailed information, including battery capacity, runtime, input/output per port, internal temperature, battery health, total input/output, battery cycles, and screen activation count. The display also auto-rotates, ensuring readability from any angle.

For enthusiasts of display-equipped power banks, this one is exemplary in design and functionality.

Also: My favorite USB-C accessory just got a major functionality upgrade - and it’s still affordable

An All-Round Impressive Package

The power bank comes with a 3.3-foot USB-C cable capable of 140W and a carry bag. Denvix enhances this package with a 24-month warranty, underscoring their commitment to customer satisfaction.

Final Thoughts

For a brand previously unknown to me, Denvix's product truly impressed. The PowerX 4-in-1 Power Bank is meticulously crafted, with thoughtful design and engineering that reflects the care invested into its creation. It stands out in a crowded market.

While the finish is a fingerprint magnet, this is a minor issue when considering the display's quality and the power it reliably delivers.

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