Examples
Examples
Try the starting example
- Delivered battery-side energy (kWh)
- 30
- Observed SOC change (fraction)
- 0.5
- Absolute energy measurement uncertainty (kWh)
- 1
- Absolute SOC-change uncertainty (fraction)
- 0.02
- Observed usable capacity (kWh)
- 60
- Lower capacity bound (kWh)
- 55.769231
- Upper capacity bound (kWh)
- 64.583333
Try another scenario
- Delivered battery-side energy (kWh)
- 24
- Observed SOC change (fraction)
- 0.4
- Absolute energy measurement uncertainty (kWh)
- 2
- Absolute SOC-change uncertainty (fraction)
- 0.01
- Observed usable capacity (kWh)
- 60
- Lower capacity bound (kWh)
- 53.658537
- Upper capacity bound (kWh)
- 66.666667
Calculation method
Calculation method
Observed usable capacity (kWh)
Delivered energy/SOC change.
Lower capacity bound (kWh)
max(0,energy−energy uncertainty)/(SOC change+SOC uncertainty).
Upper capacity bound (kWh)
(energy+energy uncertainty)/(SOC change−SOC uncertainty).
Symbols and units
- a
- Delivered battery-side energy (kWh)
- b
- Observed SOC change (fraction)
- c
- Absolute energy measurement uncertainty (kWh)
- d
- Absolute SOC-change uncertainty (fraction)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Capacity inferred from observed SOC change. This observation is not a battery health diagnosis. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. SOC change > uncertainty >=0; SOC change+uncertainty <=1; energy>=energy uncertainty>=0.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.