“I currently have a plantronics CS55 and after charging the headset will not stay charged if if talk longer than 10 minutes on a call.”

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• Hello- If the headset is a few years old your may need to replace the battery (part number: 64399-01). If the unit is under a year old, please contact Plantronics directly for a warranty replacement: http://www.plantronics.com/support/

  Answered by PlantronicsRepresentative 10 years ago

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• After charging the headset you should have up to 10 hours talk time.

  Answered by CommunityAnswer 10 years ago

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