⚡ CircuitSecrets
Battery Bank Calculator
Professional battery bank sizing for UPS, solar & backup power systems — with DOD, charging time, cost analysis & visual configuration
Lead-Acid
LiFePO4
Gel / AGM
DOD Analysis
Charging Time
Cost Estimate
Battery Sizing
Input Parameters
Battery Type
🔋Lead-Acid
⚡LiFePO4
🔌Gel / AGM
Load & Backup
System Configuration
Advanced Options
Bank Sizing
Calculation Results
Total Batteries Required
—
Configure & calculate
► Formulas & Method
Battery Bank Sizing Method
Energy Required: E = Load(W) × Time(hr) / Efficiency
Adjusted Ah: Ah_req = E / System_V / DOD
Series (S): System_V / Battery_V
Parallel (P): Ah_req / Battery_Ah
Total: S × P × Safety_Margin
Charge Time: Ah_req / Charge_Current (hr)
DOD: Lead-Acid 50% · LiFePO4 80% · Gel 60%
⚠ Note: Estimates based on nominal specs. Actual performance varies with temperature, age & discharge rate. Consult a professional for critical installations.
