RV Battery Bank Size Calculator
Going off-grid? Calculate how much battery capacity you need for boondocking based on your power consumption.
Battery Bank Calculator
Use the Electrical Load Calculator to estimate this.
Days without sun/recharging
Common: 100Ah, 200Ah, 300Ah
Configuration
Understanding Battery Capacity
Battery capacity (Ah) represents how much current a battery can deliver over time. A 100Ah battery can theoretically provide 100 amps for 1 hour, or 1 amp for 100 hours.
Depth of Discharge (DOD)
Lithium (LiFePO4): Can safely discharge to 80-90% without damage. More usable capacity per Ah.
AGM/Lead Acid: Should only discharge to 50% to maximize lifespan. Deeper discharging shortens battery life.
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