How Many Wh for Home Backup? The Duration Math That Tells You Which Size Class You Actually Need
How many watt-hours you need for home backup is not a fixed number. It depends entirely on what you’re running, how long the outage lasts, and whether you have a realistic way to recharge before the next overnight stretch. I’ll walk through the exact duration math for three common scenarios: 8-hour, 24-hour, and 72-hour outages. … Read more
