Rechargeable accupack suitable for: 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. NiMH-rechargeable accupack Voltage: 2,4 V Capacity: 70mAh Sennheiser recommends this battery for owners of the RS 40, RS 45, RS 60, RS 65, RS 80, RS 85 wireless headphone systems and HDR 45, HDR 65, HDR 85 headphones. This battery is interchangeable so you can extend your listening time on these classic wireless headphones. Compatibility: RS 40, RS 45, RS 60, RS 65, RS 80, RS 85 wireless headphone systems Warranty: The BA 151 carries a 60 day warrantyWhy Sennheiser? For over 60 years every Sennheiser mic or headphone comes with a built-in mission: to stay true to the sound and soul the music was given by its artist. From the fragile intimacy of a whispered word to the deep and dark punch of an attacking bassline. Sennheiser delivers pure emotion and excitement. A quality that has convinced a broad spectrum of artists and of course music lovers all over the world. Sennheiser offers a great experience for everyone who really wants to hear.
Yeah, this proprietary case is ridiculously expensive. If you are a little bit handy, you can take the case apart using an exacto blade. Pry along the edges, it is plastic welded, but comes apart pretty easy. There are two V80H batteries inside made by Varta. These are 1.2V Ni-MH cells for a total voltage of 2.4V. You can buy the batteries inside the case here on amazon for ... (1.2 Volts .08 Ahmps.), or from batteryspecialists.com for ... when you buy 6. You will have to desolder t..
Battery works very well. I fall asleep with my wireless headphones every night, so they basically run out of charge every night. These batteries seem to last me about 1.5 years of this 'abuse'!
I love my Sennheiser wireless headphones -- except for the battery. This battery rarely lasts more than 2 hours. That's why I have a charging unit that charges two batteries. Also to keep in mind -- these batteries wear out fast. There's only so often you can recharge these things before they die completely. If I'd known how many of these $20 batteries I'd be going though, I would probably have picked a different brand of wireless headset.
