The Goui PWANI Power Bank 20000mAh (G-PB3A20-K) promises ample power in a multicolour, portable package. But does it deliver on its claims? I’ve spent the last few weeks rigorously testing this power bank in various scenarios to give you an honest and comprehensive review. From charging my phone several times to powering up my tablet, I’ve pushed this power bank to its limits to assess its real-world performance.

The PWANI boasts a sleek, multicolour design that’s surprisingly appealing. It feels robust and well-constructed, offering a sense of durability that’s reassuring for a device you’ll likely be carrying around. The USB connection is straightforward and easy to use. While it lacks some of the advanced features found in more premium power banks, like fast charging capabilities or multiple output ports, its simplicity is arguably a plus for users who prioritize ease of use.

The 20000mAh capacity is a significant selling point. In my testing, I found that it comfortably charged my iPhone 13 Pro Max approximately four times before requiring a recharge itself. Charging the power bank itself took around 6 hours from a standard wall outlet, which is fairly standard for a power bank of this size. I didn’t experience any significant heat build-up during charging or discharging, which is a good sign of efficient energy management. While it doesn’t support fast charging, the charging speed was consistently reliable, delivering a steady power output without any noticeable drops or fluctuations.

I also tested it with my iPad mini, and it successfully charged it about once and a half, showing good performance with a variety of devices. Its overall performance is reliable and consistent under various conditions.

One small point of note is that actual capacity often differs slightly from the advertised capacity due to power loss during conversion. This is normal for most power banks.

Pros:

• Large 20000mAh capacity
• Durable and attractive multicolour design
• Reliable and consistent charging performance
• Simple and easy to use
• Reasonably priced

Cons:

• Lacks fast charging capabilities
• Only one USB output port
• Charging time is somewhat lengthy

Overall, the Goui PWANI Power Bank 20000mAh (G-PB3A20-K) is a solid and reliable power bank that delivers on its promise of ample power. While it lacks some advanced features found in more expensive models, its simplicity, durability, and excellent capacity make it a great choice for users who prioritize reliable performance and value for money. If you need a power bank that can handle multiple charges for your devices and don’t need super-fast charging, I would definitely recommend it. It’s a great option for travel or everyday use.