What is DoD?
Depth of Discharge is how much of the battery's capacity you use. Regularly draining a battery to 100% (0% remaining) can damage it. Lead-acid batteries typically shouldn't go below 50%.
Calculator
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Analysis
Interpretation of the current calculator output
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How to Use
Step-by-step instructions
- 1Enter the load current (Amps).
- 2Enter the desired runtime (Hours).
- 3Enter the safe Depth of Discharge (e.g., 50% for Lead Acid, 80% for Li-ion).
- 4The calculator will show the required battery capacity.
Capacity Sizing
Determines the total battery capacity needed by dividing the total energy required by the safe Depth of Discharge (DoD) percentage.
Capacity (Ah) = (Load × Time) / DoDVariables:
LoadCurrent in AmpsTimeRuntime in HoursDoDDepth of Discharge (decimal)Example
Solar Storage
Inputs:
Load:1 A
Time:10 hrs
DoD:50%
Steps:
- 1.Total Load = 1 * 10 = 10 Ah
- 2.Required = 10 / 0.50 = 20 Ah
Result:
20 Ah