How Long Can Electricity Be Turn Off For Maintenance?

How Long Can Electricity Be Turn Off For Maintenance? A single-battery system can typically power your priority appliances (e.g., refrigerator, lighting, and a few other outlets) for 24 to 48 hours during a power shut-off. A larger, multi-battery system can provide full backup power for 24 to 48 hours during a power shut-off. How long