Verify the inputs
Measure or document each input. If a value is only an estimate, record its source and test a conservative alternative.
Electrical power/ CALCULATOR
Inverter DC input current
Convert an AC load and inverter efficiency into approximate battery-side power and current.
FROM ESTIMATE TO ACTION
Use the result, not just the number.
Keep the calculation traceable
Save the input link or copied result together with the date, units and assumptions. A number without its inputs cannot be checked later.
Confirm the decision
Compare the estimate with the related guide, current product data and requirements that apply at your location before buying or building.
Inputs to verify
- AC load (W)
- Continuous load delivered by the inverter.
- Battery-side voltage (V)
- Use the expected operating voltage, not only the nominal label.
- Inverter efficiency (%)
- Use efficiency near the intended load when available.