How do I calculate Watt Hours from the info on a battery:
CyberPower
Model No: CST150UC
Input 120V, 12A, 60 HZ
1500VA/900W, 60 Hz
USB-C Output 5Vdc, 2.5A Max
9Vdc, 2A Max
USB-A Output 5Vdc, 2.4A Max
Total Output; 30 W Max
To carry it onto a plane in Canada it...