FieldengElectrical & Power
Battery Charge Time
Estimate charging time from capacity, SOC window, and charge current.
Electrical & PowerEngineering Fundamentals
Estimate charging time from capacity, SOC window, and charge current.
App id: ELEC-13. Reference version 1.0.
How to fill it
Fill the inputs. The tool shows the outputs.
On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.
Formula
t = Ah × (SOCtarget − SOCinitial) / (I × η)Inputs
| Name | Unit |
|---|---|
| Battery capacity | Ah |
| Initial SOC | % |
| Target SOC | % |
| Charge current (camera) | A |
| Charging efficiency (optional) | % |
Outputs
| Name | Unit |
|---|---|
| Estimated charge time (hero result) | h |
| Required charge | Ah |
Diagnose
Observations are context. They do not pass or fail a structure. See Diagnose.
| When | Observation | Severity |
|---|---|---|
Every result | Estimated charging time | info |
Assumptions
- Efficiency defaults to 100% when left blank. SOC values are fractions.
Provenance
- Does not model taper charging, temperature, or chemistry.