Size marine inverter based on AC load requirements, surge capacity, and battery draw
Input Parameters
Results
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Min Inverter Size
watts
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DC Current Draw
amps
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Battery Capacity Needed
Ah
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Recommended Inverter
watts
Reference
Inverter sizing: min 125% of continuous load
Battery Ah = DC amps × hours / 0.5 (50% DoD for lead-acid)
Surge rating must exceed starting loads of motors