First, ensure that all Solarbank units are added to the same system. Then, follow these steps in the Anker app to set the grid output power:

1. On the homepage, tap the gear icon in the upper-right corner to access settings.

2. Select "On-Grid AC Setting."

3. Click on "Max Total Output" in the upper-right corner.

4. Choose the desired power value, then tap "Save."

5. If the selected value exceeds 800W, a safety prompt will appear. You must confirm before the setting takes effect.