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.
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. .
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.
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.