Record energy consumption and essential loads before comparing residential battery formats.
Energy and power are different
Energy in kWh indicates the stored amount. Power in kW describes the rate of delivery. Neither the nominal energy alone nor the inverter label establishes backup time.
Prepare a project brief
Include continuous and peak loads, daily energy use, installation space, environment and the exact charger or inverter model. Ask for a configuration review before purchasing.
Request the supporting documents
Confirm the model-specific datasheet, applicable test documentation, destination requirements and commercial terms. Product names and nominal ratings do not establish system compatibility.