Battery State of Health (SOH)
A measure of a battery's capacity, performance, and degradation level over time.

SOH evaluates the remaining usable life of an electric vehicle's battery pack. It considers parameters like charge retention, internal resistance, and thermal performance. A high SOH indicates the battery is close to its original capacity, while a low SOH suggests wear or imbalance. Accurate SOH monitoring is essential for warranty assessment, resale value, and second-life applications. Advanced BMS systems use AI models to predict SOH dynamically for optimal performance.
Applying This Knowledge in Practice
The diagnostic principles discussed above are commonly applied in real-world vehicle diagnostics. To put this knowledge into practice, explore professional automotive diagnostic tools designed to support system testing, fault analysis, and troubleshooting across modern vehicles.