Nitecore NB20000 Gen 3 – powerbank 20,000 mAh, USB-C

Experience extended power in a lightweight carbon fiber design. The Nitecore NB20000 Gen 3 is a robust 20,000mAh power bank made of aerospace-grade carbon fiber composite, ensuring maximum durability without compromising portability—perfect for multi-day trips or demanding everyday use. Featuring dual USB-C ports with fast charging and pass-through functionality, this reliable power bank keeps all your devices powered wherever you go.

Key Features

• Capacity 20,000 mAh (72 Wh) , approved for air transport according to UN38.3

• Dual USB-C ports (IN/OUT) , up to 22.5W output per port; inputs support up to 18W for fast charging

• Ultralight - only 291g thanks to the carbon fiber reinforced composite housing

• Compact dimensions : 118 x 69 x 21.5 mm, designed to fit in pockets and small backpacks

• Durable construction : Anti-torsion carbon fiber structure with four corner cushions for increased shock resistance

• IPX5 water resistance , ideal for outdoor use in rain or snow

• LED power level indicator : four blue LEDs show remaining capacity in 25% increments; flashes when below 10%

• Low current mode for safe charging of sensitive electronics (headphones, smartwatches)

• Protection : protection against overcurrent, overvoltage, overdischarge, short circuit and overheating

Perfect for

Frequent travelers, outdoor enthusiasts, and professionals who need a reliable, high-capacity power source in a robust, yet portable form factor. Capable of continuously powering smartphones, tablets, and other USB-C devices—even while simultaneously charging the power bank itself.