The Bolt-20Pro.Black 20000mAh power bank promises a lot: fast charging, multiple ports, and a slim design. But does it deliver on its promises? After weeks of putting it through its paces, charging everything from my phone to my tablet, I’m ready to share my in-depth review.

The Bolt-20Pro.Black boasts a 20000mAh battery capacity, a 10W USB-C input/output port, and two USB-A ports. This allows for simultaneous charging of up to three devices. The inclusion of adaptive fast charging technology is a definite plus, and the smart LED battery display keeps you informed about the remaining power. The compact design and sleek black finish make it attractive and easy to carry. The power button provides simple on/off control.

In real-world usage, the Bolt-20Pro.Black performed admirably. Charging my iPhone 13 Pro Max from 10% to 100% took approximately 2 hours, which is quite impressive for a 20000mAh power bank. Simultaneously charging my phone and a Bluetooth speaker caused minimal reduction in charging speed. The 10W USB-C port proved fast and efficient for charging my tablet as well. The battery life was also impressive; I consistently got close to the advertised capacity before needing a recharge. The smart LED display was accurate and easy to read.

However, there were some minor downsides. While the charging speed was generally fast, I did notice slightly slower charging speeds when all three ports were in use simultaneously. This is a common issue with many multi-port power banks, but it’s worth noting. Also, the power bank did get slightly warm during extended high-power usage, though never uncomfortably hot.

Pros:

• High capacity (20000mAh)
• Fast charging capabilities (10W USB-C)
• Multiple charging ports (dual USB-A and one USB-C)
• Compact and portable design
• Smart LED battery display

Cons:

• Slightly slower charging with all ports in use
• Gets slightly warm during extended use

Overall, the Bolt-20Pro.Black is an excellent portable power bank. Its high capacity, fast charging speeds, multiple ports, and convenient design make it a worthwhile investment. While there are minor drawbacks related to simultaneous charging and heat generation, these are minor compared to its significant advantages. I would highly recommend the Bolt-20Pro.Black to anyone looking for a reliable and powerful power bank for their daily needs. It’s become an essential part of my tech kit.