Replacement Battery for the Plantronics CS540
P/N Coming Soon!
See image to the right
1) Remove ear loop or headband
2) Slide battery door down toward the microphone tip
3) Disconnect the battery (has two wires, red & black)
4) Wait 30 seconds
5) Replace battery
6) Let charge for 3 hours
With a single full charge, the CS540 will provide up to 7 hours of talk time. Talk time will be reduced when
operating in wideband mode or if the headset is used consistently at a far distance from the base.
Low Battery Warning
If you are on a call and the headset battery is critically low, you will hear a repeated single low tone every 15
seconds indicating the battery is low. You should recharge the headset immediately.
If you are not on a call and press the call button, you will hear three low tones if the battery is critically low. You
should recharge the headset immediately.