The Optima D31M is a cutting-edge power bank that promises to revolutionize the way we keep our devices powered on-the-go. With its massive 32000mAh capacity, this behemoth of a battery pack is designed to fuel even the most power-hungry smartphones and tablets for days at a time.

Technical Specifications:

• Capacity: 32000mAh
• Input: DC 5V/2A, 9V/1.67A
• Output: DC 5V/3A x 2, 12V/1A, 19V/1.58A
• Battery Type: Lithium-Polymer
• Dimensions: 164 x 86 x 22mm
• Weight: 430g

Comparison with Competitors:

The Optima D31M stands out from its competitors in several key areas. For instance, the Anker PowerCore Fusion (20000mAh) and the Mophie Powerstation Mini (5400mAh) pale in comparison to the D31M’s massive capacity. Furthermore, the D31M’s dual USB-C ports allow for faster charging speeds, making it an excellent choice for users who need to top up their devices quickly.

Design and Build:

The Optima D31M boasts a rugged and compact design that makes it easy to slip into a backpack or purse. The device is constructed from high-quality materials that provide excellent durability and resistance to scratches and drops. A sleek LED indicator displays the battery level, while a built-in USB-C cable provides added convenience.

Performance:

In our tests, the Optima D31M performed flawlessly, rapidly charging multiple devices simultaneously without any issues. The device’s massive capacity allowed us to charge an iPhone 12 Pro for over 7 hours on a single charge, making it an excellent choice for users who need to keep their devices powered for extended periods.

Conclusion:

The Optima D31M is an exceptional power bank that offers unparalleled performance and convenience. With its massive 32000mAh capacity, rapid charging speeds, and durable design, this device is an excellent choice for anyone looking to stay connected on-the-go. Whether you’re a frequent traveler or simply someone who needs to keep their devices powered at all times, the Optima D31M is an investment worth considering.

Rating: 9.5/10

Recommendation:

The Optima D31M is highly recommended for users who need a reliable and high-capacity power bank that can handle multiple devices simultaneously. While its price may be slightly higher than some of its competitors, the device’s exceptional performance and durability make it an excellent value proposition.