Durability and cycle frequency of smartphone and tablet lithium-ion batteries in the field

Abstract

The study presents data on the state of health of smartphone and tablet lithium-ion batteries that were used in devices in the field for up to several years. Data was retrieved from the coconutBattery database, which contains thousands of datasets on batteries from several device models from the same manufacturer. The durability of batteries in the sample data was found to be quite high. Even batteries that had been in the field for several years and had endured hundreds of charging cycles were able to retain a relatively high state of health. However, several major limitations in regard to generalizability of the findings were identified. Furthermore, the cycle frequency of smartphone and tablet batteries in the field is presented, which may be useful to support life cycle assessments and carbon footprinting of such product groups.