
The Anker Prime 20,000mAh Power Bank charges devices pretty quickly. According to the manufacturer, it has two USB-C ports and one USB-A port. Each USB-C port can deliver up to 100W, and the total output for all ports can go up to 200W.
So, you could charge two laptops at 100W each, which is pretty impressive for a portable charger.
It also has a digital display that shows real-time info about the remaining battery, power input, and the output from each port. This feature is pretty handy for keeping track of everything.
One thing to keep in mind is that if you're charging two high-power devices at the same time, the power bank might get a bit warm, which could slightly affect its efficiency.
Our research found that this has been pointed out a few times, but it's generally seen as a minor issue compared to the overall performance and convenience it offers.
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If the Anker Prime Power Bank 20,000mAh doesn't quite fit your needs, here are some other options to consider:

The RAVPower 20000mAh Portable Charger offers a similar capacity but stands out with its up to 100W output, making it a better fit for devices like the Surface or other laptops needing higher wattage for fast charging. Additionally, it often comes at a lower price point, providing great value for folks seeking effective performance.

The Aukey 20000mAh Power Bank includes three USB-A ports and one USB-C port, enabling you to charge multiple devices simultaneously without losing speed or efficiency. It's a reliable option for folks who frequently use various gadgets and need to charge them all at once.

With a remarkable 30000mAh battery capacity, the Baseus Power Bank allows you to charge your devices multiple times throughout the day. Ideal for travelers or those frequently away from power sources for extended periods.