Key indicators
- Pack voltage: 219V → normal for your RX400h
- State of charge: ~51% → right in the typical operating range (these cars hover ~40–60%)
- Volt diff: 0.09V → excellent
- Anything under ~0.2V is considered well-balanced
- Block voltages (~21.8–21.9V each) → very consistent
- Internal resistance: ~29–31 mΩ → uniform across blocks (good sign)
- Temps: 86–92°F → normal, no overheating
What would worry me (but you DON’T have)
- Large voltage spread (>0.3V)
- One block consistently lower than others
- High or uneven internal resistance
- Rapid SOC swings
What this means
Your battery:
- Is well balanced
- Has no obvious weak module
- Is aging normally (if at all noticeable)
