Over the past few weeks, I’ve been putting the TTBB10000FASTK 10,000 mAh power bank through its paces. This compact black power bank promises fast charging capabilities and compatibility with a range of devices. Let’s dive into the details and see if it lives up to the hype.

The TTBB10000FASTK boasts a compelling set of features. Its dual USB output system – one 2.1A port for faster charging and one standard 1A port – allows for simultaneous charging of multiple devices. The inclusion of both USB-C and Micro-USB input ports adds convenience for charging the power bank itself, catering to a wide range of charging methods. The four status LEDs provide a clear indication of the remaining battery life. The included charging cable is a nice touch.

In my testing, the 2.1A port delivered on its promise of fast charging. I consistently saw around a 50% charge on my iPhone within 30 minutes, as advertised. Charging two devices simultaneously did slightly reduce the charging speed of each, but both still charged at a reasonable rate. The 1A port worked perfectly for slower charging devices or accessories. The battery life of the power bank itself was consistent with the advertised 10,000 mAh capacity. I was able to fully charge my phone multiple times before needing to recharge the power bank.

However, I did notice that the power bank itself took a longer time to charge fully compared to some other models I’ve reviewed. This wasn’t a major issue, but it’s worth noting. The heat generated during fast charging was also slightly higher than I’d prefer. Although, it never became uncomfortably hot.

Pros

• Fast charging capability (2.1A port)
• Dual USB output ports for simultaneous charging
• Convenient USB-C and Micro-USB input ports
• Accurate battery level indication (LEDs)
• Included charging cable

Cons

• Slightly longer charging time for the power bank itself
• Generates slightly more heat than ideal during fast charging

Overall, the TTBB10000FASTK is a solid power bank offering excellent fast-charging performance and versatile charging options. While the longer self-charging time and slightly elevated heat during fast charging are minor drawbacks, they don’t significantly detract from its overall usability. I would confidently recommend the TTBB10000FASTK to anyone looking for a reliable and convenient portable power source, especially those who value fast charging capabilities.