Baseus 20000mAh / 20W for ~$30.
Rated Capacity: 12000mAh
Input
- Micro Input: 5V/2A, 9V/2A Max
- Type C Input: 5V/3A, 9V/2A Max
Output
- USB 1 & USB 2 Output: 5V/3A , 9V/2A , 12V/1.5A Max
- Type C Output: 5V/3A, 9V/2.2A, 12V/1.5A Max
- Total Output: 5V/3A Max
Size: 153mm x 68.8mm x 29.5mm
Weight: 458g
You can bring this onto airplane carry-on without seeking permission from airline.
fbi aint gonna let this on the plane i think