• For peak performance from your headset, replace the original battery with a new one
  • Compatible with all Sennheiser wireless headsets


Batteries, like all things, don't stay young forever. If you find that your Sennheiser headset isn't able to keep up with your fast paced office lifestyle as it once did, replace the original Lithium-Ion battery with a new one.

Technical Specifications

Manufacturer Sennheiser
Catalog Number 1866
Type Wireless
Max Range / Cord Length Not Applicable
Weight 0.2 oz.
Color Grey
Special Technologies Not Applicable
Warranty 1-Year Full Replacement
Battery Life 1.5 - 2 years
Handset Lifter Compatible Not Applicable
What's in the box? Senheiser replacement battery

Customer Reviews