Posted by a reviewer on Amazon

I bought this to fix my wireless headset at work

Posted by a reviewer on Amazon

No more headset being dead after 2 hrs

Posted by a reviewer on Amazon

Ordered a 2pk both working flawlessly in plantronics cs540s that previously were not holding a charge

Posted by a reviewer on Amazon

It was becoming a nusance and i strongly dislike using my handheld office phone

Posted by a reviewer on Amazon

Popped in this battery and now i can be on my headset all day without have to charge it up

Posted by a reviewer on Amazon

Only strange thing was that it was packaged in a very large oversized box

Posted by a reviewer on Amazon

I work on the phone and the original headset battery that i was using on my cs540 slowly got worse and worse until it was only lasting me about 12 hours on a full charge

Posted by a reviewer on Amazon

I wanted to replace the battery but did not want to shell out the 25 it costs to buy a first party plantronics replacement battery