The quality required in electrolyte limited, valve regulated lead-acid batteries for telecommunication systems

The authors describe the results of a study performed for the purpose of elucidating the impact of critical product features on customer requirements for the valve-regulated lead-acid technology, as gathered through existing literature concerning telecommunication power system design and field experiences. In this study, the necessary areas of concentration were systematically identified by describing their impact on three different classes of customer requirements. The first class consists of requirements attributed to the performance of individual batteries in a system; the second class involves the general categories of safety, reliability, and variability; and the third class represents issues related to the battery system. As a result, a framework is established that provides a discipline to assure that the product features that impact significantly on each class of customer requirements drive product and process design