Reliability refers to the ability of a battery or battery system to operate without failure and continuously stably within specified working conditions and time periods. It is one of the important indicators for measuring battery quality, lifespan, and safety, and is widely used to evaluate the consistency of product performance and long-term usage.
In battery applications, reliability is usually focused on:
The stability of the cyclic life, the persistence of safety performance (such as not overheating, not catching fire), the consistency of battery degradation, and the stability of the electrical connection and management system (such as the normal operation of the BMS).