Battery State of Health Decay Simulator
Model SoH degradation over 10 years and visualize when your battery passport hits the critical 80% threshold. Art. 14 & Annex VII require real-time SoH data accessible via the digital passport.
Battery Parameters
SoH Degradation Curve
Year-by-Year Breakdown
| Year | SoH | Cycles | Usable (kWh) | Status |
|---|---|---|---|---|
| 0 | 100% | 0 | 75 | Nominal |
| 1 | 97.6% | 300 | 73.2 | Healthy |
| 2 | 95.1% | 600 | 71.3 | Healthy |
| 3 | 92.7% | 900 | 69.5 | Healthy |
| 4 | 90.2% | 1,200 | 67.7 | Healthy |
| 5 | 87.8% | 1,500 | 65.9 | Degraded |
| 6 | 85.3% | 1,800 | 64 | Degraded |
| 7 | 82.9% | 2,100 | 62.2 | Degraded |
| 8 | 80.1% | 2,400 | 60.1 | Degraded |
| 9 | 77% | 2,700 | 57.8 | Critical |
| 10 | 73.8% | 3,000 | 55.4 | Critical |
Manual Logging is a Compliance Risk
The EU requires this data to be real-time and accessible via the Digital Battery Passport. Art. 14 mandates that State of Health parameters — remaining capacity, power capability, and internal resistance — must be available through the battery management system and updated in the passport.
With 40 mandatory updates over 10 years (quarterly under Art. 14), and 3,000 charge cycles generating telemetry, manual data collection and spreadsheet-based reporting will not scale. Each update must be timestamped, traceable, and machine-readable at the passport endpoint.
Automate SoH Reporting with VoltQuery
Connect your BMS telemetry to the VoltQuery API. We ingest cycle data, compute SoH, and push updates to your digital battery passport — automatically, traceably, and in the format regulators expect.
Automate SoH Reporting →