- Posts: 4
- Joined: Sat Nov 14, 2020 8:59 am
- Real Name: Tiago Veloso
You can calculate this with very simple math:
USB is 5V. 2W @ 5V = current draw of 400mA.
2000mAh means 2000 mA for an hour. 2000mAh / 400mA = 5h. Take away some to compensate for efficiency, and you'll get somewhere between 4 and 5 hours out of that powerbank.