Nitecore NB20000 Gen 3
- Capacity:
- 20,000mAh
- Max Output:
- 22.5W
- Wireless:
- None
- Weight:
- 291g
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Manufacturer: Nitecore Last updated: 2026-09-15
Where to buy
- Nitecore StoreGo to store
Nitecore NB20000 Gen 3 Review
The Nitecore NB20000 Gen 3 is a 20,000mAh, 72Wh power bank rated IPX5 water-resistant, with dual USB-C ports supporting up to 22.5W each and USB-C pass-through charging.
This is the pick if you want a lot of capacity in a bank that can handle a splash. It's above the 100Wh airline threshold at 72Wh, so it's fine to carry but worth knowing before you pack it.
Ports and Charging
Two USB-C ports (both input/output capable) deliver up to 22.5W each, with an included USB-C to USB-A adapter for older accessories, and pass-through charging support.
Durability
IPX5 water-resistance and a 291g weight make this a reasonable choice for outdoor or worksite use where a drop of rain shouldn't be a problem.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- High-capacity outdoor and travel backup
- Multi-device USB-C charging
Not for
- Laptop charging (60W+)
- Wireless charging needs
Specifications
What these specs meanIdentity
| Brand | Nitecore |
|---|
Capacity
| Capacity mAh | 20000 mAh |
|---|---|
| Capacity Wh | 72 Wh |
| Cell Chemistry | Li-ion |
Output power
| Single Port Max Output | 22.5 W |
|---|---|
| Max Output With All Ports | 15 W |
Ports
| Output Port Count | 2 ports |
|---|---|
| USB-C Port Count | 2 ports |
| AC Outlet | No |
| Built-in Cable | No |
Recharging
| Recharge Input Power | 18 W |
|---|---|
| Passthrough Charging | Yes |
Size and portability
| Weight | 291 g |
|---|---|
| Length | 118.0 mm |
| Width | 69.0 mm |
| Thickness | 21.5 mm |
Safety and features
| Airline Safe | No |
|---|
FAQs
What are the key specifications of the Nitecore NB20000 Gen 3 (20,000mAh/Carbon Fiber/IPX5 Ultralight Power Bank)?
Key specs for the Nitecore NB20000 Gen 3: Capacity 20000 mAh, Ports 2x USB-C (IN1/OUT1, IN2/OUT2), USB-C to USB-A adapter included, Energy 72 Wh, Airline Safe/100Wh or less No, Max Single-Port Output 22.5 W, Total Output 15 W.
Will the Nitecore NB20000 Gen 3 (20,000mAh/Carbon Fiber/IPX5 Ultralight Power Bank) work with my current setup?
The Nitecore NB20000 Gen 3 (20,000mAh/Carbon Fiber/IPX5 Ultralight Power Bank) lists Capacity is 20000 mAh. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Nitecore NB20000 Gen 3 (20,000mAh/Carbon Fiber/IPX5 Ultralight Power Bank) best suited to?
Best suited to: High-capacity outdoor and travel backup; Multi-device USB-C charging.
What are the drawbacks of the Nitecore NB20000 Gen 3 (20,000mAh/Carbon Fiber/IPX5 Ultralight Power Bank)?
Not the best fit for: Laptop charging (60W+); Wireless charging needs.
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