1300mAh 533-000128, 623158 Battery Replacement Compatible with Logitech Harmony 950 (915-000260) and Harmony Elite (915-000256, 915-000257) Remote Controls TV Accessories - Newegg.com
Harmony Elite User Guide
Amazon.com: Replacement Battery for Harmony 950, 915-000260, Elite, 915- 000257, fits Part Number 533-000128, 623158, Remote Control Cameron Sino CS-LOH950RC 3.7V Li-Polymer 1300mAh/4.81Wh : Electronics
Amazon.com: Logitech Harmony Elite Remote Control, Hub and App - Discontinued by Manufacturer : Tools & Home Improvement