Image not available$69.99
1 retailer
Carbo 20
The Nitecore Carbo 20 is a 20,000 mAh, 0.71 lb battery bank with 65 W max output and 2 USB-C ports.
- Capacity
- 20,000 mAh · 77.6 Wh
- Weight
- 0.7 lb · 320 g
- Max output
- 65 W
- Recharge
- 65 W in
Image not availableWhat the data says
- Lighter than 50% of the 4 other battery banks we list in the 17,500–22,500 mAh range.
- Rated 77.6 Wh: under the 100 Wh limit for carry-on batteries, so no airline approval is needed (spare batteries can't go in checked bags).
- Its fastest port delivers 65 W, enough to charge most USB-C laptops.
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) | 77.6 Wh |
| Flying with it | Carry-on OK (under 100 Wh) |
| Weight (manufacturer) | 0.71 lb (320 g) |
| Dimensions | 2.9 × 4.8 × 12.8 cm (1.1 × 1.9 × 5.0 in) |
| Max total output | 65 W |
|---|---|
| Fastest port | 65 W |
| USB-C ports | 2 |
| Fastest input | 65 W |
|---|---|
| Pass-through charging | Yes |
| Digital display | Yes |
|---|---|
| Water/dust rating | IPX8 |
| Built for | Everyday carry, Outdoor, Laptops, Travel |
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