Architecture & Environment
Parametric Workbench
Battery Gross Capacity
90 kWh
Battery Usable (Net) Capacity
84 kWh
Ambient Temperature
-5°C
Parked Unplugged Duration
7 Days
App/Telematics Polling Interval
15 min
Security / Sentry Standby Mode
Heat Pump Equipped (vs Resistive PTC)
12V DC-DC High-Voltage Top-Up Enabled
Physics Reference: Modern EVs never truly sleep. The 12V bus maintains telematics and keyless transceivers. As the 12V state drops, the HV contactors close to run the DC-DC buck converter, creating stepped parasitic drops on the traction battery.
Effective Range
172.2 mi
At -5°C driving load
HV Pack Drop (Parked)
7.8%
Over 7 days unplugged
Parasitic Drain Rate
0.94 kWh/day
12V bus + HV DC-DC cycle
Winter Efficiency
2.05 mi/kWh
Thermal + AWD drag
Powertrain & Low-Voltage Parasitic Architecture Flow
Usable: 93.3% | Buffer: 6.7%
State of Charge (SoC) Decay Curve While Parked
Day 0: 80.0% → Day 7: 72.2%
Subsystem Parasitic Current & Power Breakdown
Total Standby: 39.2 W
| Subsystem Component | Nominal Current (mA) | Operating Voltage | Standby Power (W) | 24h Energy (Wh) | Drain Factor |
|---|