Plantronics CS540, CS540a Savi headset battery replacement
Replacement Plantronics CS540, CS540a Savi headset battery 3.7-volt rechargeable batteries for the Popular wireless head set used by many office workers who spend a lot for time on the phone,
the Plantronics CS540, CS540a Savi batteries should be charged before first use and this will help extend the battery life, try not to let the batteries store for to long without a top up charge

Replaces 3.7V batteries :
84479-01, 86180-01

For Plantronics telephones and other headsets

CS540

CS540a

Savi CS540

Savi CS540a

And Other Phones using same batteries
battery type : Li-Polymer
Voltage: 3.7v
Capacity: 140mAh

Dimension: 24.50 x 14.80 x 5.20mm