Blackout Duration Planner
Understand how long your battery can keep essential appliances running during a power outage.
Battery Configuration
Set your battery capacity and current charge level
Available energy: 7.2 kWh
Select Appliances
Choose which appliances you want to run during a blackout
Total Load: 270W (0.3 kW)
Backup Duration
Hours of Backup
26.7h
Days of Backup
1.1
Scenario: With 10 kWh at 80% charge, you have 7.2 kWh available to power 3 appliances drawing 0.3 kW total.
Tips for longer backup:
- Keep battery fully charged when storms are forecast
- Turn off non-essential appliances during outages
- Use appliances in shifts rather than simultaneously
- Consider a larger battery for extended backup needs