The Transparent Pro 20000mAh power bank (model number GNTRAPB20KBK) promises a lot: a large capacity, fast charging, multiple ports, and a sleek, transparent design. But does it deliver? After putting this power bank through its paces over the past few weeks, I’m ready to share my honest review.

The GNTRAPB20KBK boasts an impressive array of features. Its transparent casing allows you to see the internal components (a nice design touch!), and it includes a digital display showing the remaining battery life – a very useful feature. The integrated cables (Lightning, USB-C, and Micro-USB) are a convenient addition, eliminating the need to carry separate cables. The inclusion of two USB-A ports and a USB-C PD port provides ample charging options for multiple devices simultaneously. The 20W fast charging capability is a major plus.

In terms of performance, the Transparent Pro lived up to its promises in most aspects. Charging my iPhone 13 Pro Max from 10% to 100% took approximately 2 hours, which is quite impressive for a 20000mAh power bank. I also tested it with my Samsung Galaxy S22 Ultra and a pair of wireless earbuds, experiencing consistently fast charging speeds across all devices. The digital display accurately reflects the remaining power, and the power bank itself remained cool even during prolonged usage. However, I did notice a slightly slower charging speed when using all ports simultaneously – a common issue with many power banks, but worth noting.

The integrated cables were handy for quick charges, but their relative shortness might pose a limitation for some users, especially those who prefer a longer cable length for more comfortable use. The build quality felt solid, although the transparent casing might be prone to scratching over time – a protective case would be a worthwhile addition.

Pros:

• Large 20000mAh capacity
• Fast charging (20W)
• Multiple ports (2 USB-A, 1 USB-C PD)
• Integrated cables (Lightning, USB-C, Micro-USB)
• Digital display
• Stylish, transparent design

Cons:

• Slightly slower charging with multiple devices
• Integrated cables are relatively short
• Transparent casing may be prone to scratches

Overall, the Transparent Pro 20000mAh power bank (GNTRAPB20KBK) is a solid choice for anyone seeking a high-capacity, fast-charging portable power solution. The integrated cables and digital display are particularly convenient features. While it has a couple of minor drawbacks, they don’t significantly detract from its overall excellent performance. I would happily recommend this power bank to friends and family.