Monthly Energy Consumed (kWh) & Session Count
Average SOC at Start vs End by Month
Monthly Charging Hours
Est. Battery Health
Battery Health Proxy: kWh per 100% SOC Added (Monthly Avg)
Average Charge Start SOC Over Time — Range Behaviour Proxy
📊 How Health is Estimated
Battery health is proxied by measuring kWh needed to add 100% SOC. Lower numbers = more efficient charging, suggesting higher remaining capacity. The BMW i3 60Ah has a ~22 kWh usable pack.
⚠️ Interpretation Notes
Very partial charges and top-off sessions can inflate the per-100% metric. Sessions with <5% SOC added are excluded. First months of ownership often show higher variance.
✅ Stable = Healthy
A flat trend over time with low variance indicates gradual, normal degradation. A sudden drop in the proxy value could indicate a calibration; a sudden rise could indicate accelerated degradation.
Charging Start Hour of Day
Sessions by Day of Week
Session Duration Distribution
Energy per Session Distribution (kWh)
| Date | Start SOC | End SOC | SOC Added | Energy (kWh) | Duration | Mileage (km) | Type |
|---|
No XML status file found in ZIP.
The BMW CarData package should include a
The BMW CarData package should include a
KeyList…xml file alongside the charging history JSON.