Image not available$32.99
1 retailer
NB20000 Gen 3 Dual USB-C Power Bank
The Nitecore NB20000 Gen 3 Dual USB-C Power Bank is a 20,000 mAh, 0.64 lb battery bank with 22.5 W max output and 2 USB-C ports.
- Capacity
- 20,000 mAh · 72 Wh
- Weight
- 0.6 lb · 291 g
- Max output
- 22.5 W
- Recharge
- 18 W in
Image not availableWhat the data says
- Lighter than 100% of the 4 other battery banks we list in the 17,500–22,500 mAh range.
- Rated 72 Wh: under the 100 Wh limit for carry-on batteries, so no airline approval is needed (spare batteries can't go in checked bags).
Computed from the specs below. How we write summaries.
Full specs
Last verified Oct 5, 2026
Unless marked otherwise, specs are from the manufacturer’s product page (nitecorestore.com).
| Capacity | 20,000 mAh |
|---|---|
| Energy (rated) | 72 Wh |
| Flying with it | Carry-on OK (under 100 Wh) |
| Weight (manufacturer) | 0.64 lb (291 g) |
| Dimensions | 11.8 × 6.9 × 2.2 cm (4.6 × 2.7 × 0.9 in) |
| Fastest port | 22.5 W |
|---|---|
| USB-C ports | 2 |
| Fastest input | 18 W |
|---|---|
| Pass-through charging | Yes |
| Water/dust rating | IPX5 |
|---|---|
| Built for | Travel, Outdoor |
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