Sennheiser Wireless Headphone Battery (BA 151)

If you have an older pair of Sennheiser wireless headphones like the RS65 or RS85 models, we recommend picking up an extra one of these little fellas for those times when you want to listen but the original battery is still being charged or if your original Sennheiser RS-model battery is suffering from decrepit old age or has gone missing in action.

It takes 8-12 hours to charge the battery initially, after which it can be charged in 6-8 hours. The rechargeable BA-151 battery should last a minimum of about 5-6 hours of constant wireless headphone use.

This battery will work with the following Sennheiser wireless headphone models: IS 150, IS 300, Set 810, Set 250, Set 500, IS 380, Set 820, Set 2500, RS 4, RS 6, RS 8, RS 400, RS 30, RS 40, RS 45, RS 60, RS 65, RS 80, RS 85, RS 2400, HDI 302, and A 200.