Brief description of the battery results

What is a hybrid battery test result?

Interpretation: The hybrid method test result combines the Coulomb counting and voltage-based methods, yielding a measured capacity of 93 Ah and an SOC of 88%. By utilizing both methods, we can gain a more accurate understanding of the battery’s capacity and performance under the test conditions.

Why is accurate battery Soh estimation important?

Accurate battery SOH estimation is essential for quantitatively predicting the battery expected lifespan and driving range as the battery degrades. The safety issue is more uncertain and relates to safe operation of the EV and possibly the life of the vehicle driver.

How to track EV battery performance & health?

Hence, the only realistic approach to tracking the performance and health of the cells is to measure and store the data for later analysis of their voltage and temperature and possibly current as the EV is being driven and as the battery is being charged.

What if a battery test result does not indicate 'battery OK'?

However, it is often obvious that the battery is reaching the end of its useful life. In the case of a test result which does not definitely indicate “Battery OK”, other influencing factors must be taken into account for better interpretation of the result. E.g. Subjective impression by the driver – e.g. fewer Start-Stop moments than previously.

What is battery capacity?

Battery capacity is essentially the amount of energy a battery can store and deliver. Think of it as the battery’s “fuel tank” that powers our beloved gadgets, electric vehicles, and renewable energy systems. The larger the capacity, the more energy a battery can store and supply.

How does a battery management system work?

In-depth algorithms and models are used by advanced battery management systems to continually monitor and assess the condition of health of batteries in real-time. The standard operating voltage of a battery is indicated by a reference value known as nominal voltage.