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Plantronics Wireless Headset Battery & Charging Information

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Plantronics CS540 Wireless Headset

When it’s fully charged, the Plantronics CS540 battery will provide up to 6 hours of talk time.  But it will be reduced when operating in wideband mode or if the headset is used consistently at a far distance from the base. A beeping Low Battery Warning will sound If you are on a call and the headset battery is low, you will hear a repeated beep every 15 seconds notifying you the the battery is running out.  you will hear three low beeps if the battery is critically low.  You should hang-up recharge the battery right away.  If you’re constantly running out of battery during a call, you probably need to replace the battery with a new CS540 battery.  or if your work requires extended calls on a regular basis. switch to the Plantronics CS545-XD model. The CS540-XD  model allows “unlimited” talk time.  In the middle of the call, you can hot-swap out the battery when it becomes low with a fully charged one that’s included in the CS545-XD headset package.

To replace a Plantronics CS540 Battery:

  1. Slide the battery cover off and remove it from the headset.
  2. Pull the battery out of the attachment clip.
  3. Grasp the battery connector and disconnect from the headset.
  4. Plug the new battery to the battery connector.
  5. Once connected, slide the battery into place.
  6. Slide the cover back on and push it into place.

cs540 battery install

Plantronics CS510 / Plantronics CS520

when the battery is fully charged the Plantronics CS510 or CS520 will provide up to 8 hours of talk time.  Talk time will be reduced when operating in wideband mode or if the wireless headset is always used from long distances from the phone.  If the battery is low, it will beep every 15 sec, telling you that battery is running low.  If you are constantly running out of battery because of your job, you should consider switching to the Plantronics CS510-XD Wireless Headset System instead, which has the hot-swap-able battery so you’re “never” run out of battery during the course of a long phone call.

Below are instructions on how to swap out a CS510 or CS520 battery:

1. Use fingernail to lift off and flip open battery door.
2. Use hook end of tool to hook battery wires and pull toward open battery door until battery moves out from behind post.
3. Once battery is removed, gently disconnect battery connector. do not pull hard.
4. Close door so that it is flush with headset.
5. Using the “Y” end of the tool, press the battery backwards and away from battery door until the left corner of the battery tucks under the post in the battery compartment. Tuck all of the battery wires and connectors into the battery compartment.

6. Close door so that it is flush with headset.

CS510-Battery Replacement

Plantronics CS50/Plantronics CS55:

The Plantronics CS55 and Plantronics CS50 headsets require a 20 minute charge for partial functionality and 3 hours for a complete charge. To charge these headsets, simply slide them into the charging base and be sure that the amber light (on the left side of the base) begins flashing. When the amber light becomes solid, the headset is fully charged.

If your headset does not turn on (no green light), then your battery has no charge.

Place your headset on the charging base, and look for the base’s amber light. If the amber light blinks, then your headset needs to charge. When the headset is fully charged, the amber light will become solid. If, after a full day, the amber light continues to blink, it may indicate a charging problem with the battery.

If your headset never fully charges, or if your fully charged headset gives less than 8 hours of talk time, then your Plantronics CS50/CS55 battery may need to be replaced. .

To replace the battery:

1) Remove any ear loops or headbands from the headset.
2) Locate the two sets of grooves on the sides of the headset. Squeeze them both and pull outward to remove the battery door. (Occasionally, these battery doors stick. You may need to pull or wiggle with considerable force.)
3) Beneath the battery door, you will see a rectangular battery attached to the headset with two white plastic connecters. Slide these connectors apart to detach the battery.
4) If you have a replacement battery, attach it by clicking the two white plastic connectors together. Then reassemble the headset by replacing the battery door. Reattach any ear loops or headbands.

Plantronics CS50 Battery replacement

Plantronics CS351/Plantronics CS361:

The SupraPlus Wireless headsets, Plantronics CS351N and Plantronics CS361N require a 20 minute charge for partial functionality and 3 hours for a complete charge. To charge these headsets, simply slide them into the charging base and be sure that the amber light (on the left side of the base) begins flashing. When the amber light becomes solid, the headset is fully charged.

If your headset does not fully charge, or if your fully charged headset gives less than 8 hours of talk time, then your Plantronics CS351/CS361 battery may need to be replaced. .

Plantronics CS70/CS70N:

The Plantronics CS70N headset needs 20 minutes for a partial charge and 3 hours for a complete charge. To charge the Plantronics CS70/CS70N, simply slide it into the charging base with the microphone pointing towards the right (you’re right when you’re facing the base). The amber light will flash while charging and become solid after a full charge.

Plantronics 510S:

The Plantronics 510SL headsets must be charged for one hour to receive a partial charge and 3 hours for a full charge. T he light on the Voyager 510 headset (located near the microphone) will flash red while charging and become solid blue when the headset is fully charged.

When the headset battery is running low, an audible warning will be heard through the headset as a single beep repeating every 20 seconds. The headset Status Indicator will also flash red when the battery needs to be recharged. You should charge the headset immediately.

All of these wireless headsets use rechargeable lithium ion batteries that last for up to 500 full charging cycles. Batteries for the CS models can be ordered individually and replaced, but the Plantronics Voyager 510 battery is built into the unit and cannot be replaced.