🔋 Battery Capacity Calculator
📦 Load Parameters
Daily Power Consumption (Wh/day)
Total power consumed by the system over 24 hours
Night Power Consumption (Wh/night)
Power consumption during night operation only
🌤️ Environment Parameters
Consecutive Rainy Days (days)
Number of days the battery must power the system alone
Minimum Temperature (°F)
Ambient temperature that affects battery capacity
🔋 Battery Parameters
System Voltage (V)
12V
24V
48V
Battery Type
Lead-acid battery
Lithium battery
Gel battery
Depth of Discharge (DoD) (%)
Lead-acid: 50-70%, lithium: 80-90%
Battery Efficiency (%)
Typically 90-95%
📊 Calculation Results
Calculate
Required Energy Calculation
Total energy required:
-
Wh
Battery Capacity Calculation
Base capacity:
-
Ah
After temperature correction:
-
Ah
Recommended battery:
-
Ah
Temperature Correction Factor
Correction factor:
-
Ambient temperature:
-
°F
📋 Reference Standards
IEC 61427-1
Secondary Batteries – PV
IEC 62620
Li-ion Cells
IEEE 485
Lead-Acid Sizing
AS/NZS 4509.2
Stand-Alone Power Systems
📦
Load
🌤️
Environment
🔋
Battery
📊
Results