Battery LI-ION for LOGITECH HARMONY REMOTE replaced Battery type 190304-200, R-IG7, F12440023, K43D, L-LU18, 190582-0000, F12440056, M36B, M41B
Although Fits and works in principle in a (older) Harmony One, but do not load, allowing the battery in the charging cradle (Harmony One gives error message), so obviously not the same type as the original battery.