Battery:‐Kia‐Xceed‐PHEV - dalathegreat/Battery-Emulator GitHub Wiki
The Kia Xceed (and Hyundai equivalent) uses a dual-pack 8.9 kWh high-voltage battery system, consisting of a Main Pack and a Sub Pack, each rated at approximately 4.45 kWh at 180V nominal.
| Parameter | Value |
|---|---|
| Total Capacity | 8.9 kWh |
| Nominal Capacity | 24.7 Ah |
| Pack Configuration | 2 × packs (Main + Sub) |
| Capacity per Pack | ~4.45 kWh |
| Nominal Voltage (combined) | 360V |
| Nominal Voltage per Pack | ~180V |
| Operating Voltage Range | 240V – 413V |
| Cell Configuration | 96S (4 cells × 24 modules) |
| Cell Type | LiB Pouch (Lithium Ion) |
| Cell Nominal Voltage | 3.75V |
| Cell Voltage Range | 2.5V – 4.3V |
| Max Discharge Power | 59 kW (at 55% SOC) |
| Max Charge Power | 43 kW (at 55% SOC) |
| Max Continuous Current | ±250A |
⚠️ Pins 19 and 22 are linked as part of the service plug (safety interlock) circuit. Breaking this link disables HV output.
- Part of the HV harness physically attached to the Main Pack
- Carries BMS data from the Main Pack back to the Sub Pack
- Full pinout to be documented
[Sub Pack]
│
│ HV output (always live — breaks only at safety plug)
▼
[Main Pack]
│ Relay assembly
│ (controlled via BF21 → BF11)
▼
[Inverter]
BF21 — 24-pin connector on the Sub Pack. Top row: pins 1–12, bottom row: pins 13–24.
Top: Main Pack (black enclosure, underside view). Bottom: Sub Pack (silver/aluminium enclosure) with orange HV interconnect harness and BMS visible.
Detail of the inter-pack connection point showing the orange HV connector (always live), the orange safety plug, and the low-voltage signal harness (BF21/BF11 and BB12).
⚠️ Warning: The HV connection between the Sub Pack and Main Pack is always live when the safety plug is installed. Always remove the safety (service disconnect) plug before working on either pack.
- BMS data and relay control travel on separate harnesses/connectors — do not confuse BB12 (data) with BF21/BF11 (relay control)
- The Sub Pack hosts the BMS for the entire system, meaning the Main Pack has no standalone BMS capability
- This architecture is shared across the Kia/Hyundai platform for this battery generation