With up to 14 000 mAh per cell, the D smart meter battery provides extraordinary runtime for advanced smart meters and remote data hubs, maintaining over 90% capacity after 10 years and under 0.3% annual self-discharge to minimize maintenance. Manufactured under ISO9001 controls and rigorously tested against UL, IEC, and RoHS criteria on SUNJ’s cutting-edge lines, each cell delivers the peak performance and dependability required for large-scale utility infrastructures.