The depth of discharge is a percentage of the electrical energy that can be withdrawn from the battery relative to the total battery capacity. For example, if you discharge 8 kWh from a solar battery with a 10 kWh capacity, the battery's depth of discharge would be 80% (8 kWh / 10. . Battery capacity defines how much energy a battery can store and is measured in ampere-hours (Ah) or watt-hours (Wh). For example, if a 10 kWh battery discharges 3 kWh, its DOD is 30%. This value is the opposite of State of Charge (SOC), which indicates the remaining energy. A deeper DOD means more energy has. . One of the most important – yet often overlooked – terms in solar battery performance is Depth of Discharge, commonly referred to as DoD.
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