I’m here to answer all your questions about the GENUINE, I say, GENUINE Plantronics Headset Battery! (Please note this product is discontinued, and is not interchangeable with cat #2284)

This little beauty will fit the following headsets:

CS510

CS520

CS351N (DISCONTINUED!)

CS55 USB (DISCONTINUED!)

CS50*** (DISCONTINUED!)

CS55*** (DISCONTINUED!)

Savi W710 DISCONTINUED!

Savi W720 DISCONTINUED!

We currently carry the CS50/50 battery cat #2284 (p/n65358-01) for $39.74

We will need to special order the following:

Battery fro CS510/520 & W710/720( P/N 202599-03 )

And all for the LOW LOW PRICE of $39.95! ($47.95 in Canada)