Battery-King Battery for Sennheiser RR 4200, Ri 410, Set 840 - replaced BA 300, 500 898, HC-BA300, NCI PLS100H - Li-Polymer 150mAh (Electronics)
A real assessment can give use maybe after one year. Only then shows whether it was a good buy. So far, anyway, I'm very zufrieden.Akkulaufzeit is just fine for about 8 hours, but what is the situation in six months? only a statement of Wert.solange