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Battery for CS50, CS55 & AWH55 – DISCONTINUED

Discontinued – Click for more info
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Replacement Battery for Plantronics CS55, CS50 & Avaya AWH55+ Wireless Headset Systems

  • Manufacture Discontinued – please order PL-64399-03
  • Lithium Ion Polymer (Li-Ion) battery
  • Actual size: 3/4″ X 1-1/4″ X 1/8″ inch thick
  • To replace the battery in the CS55/CS50, firmly squeeze both sides of the battery door cover and lift upward
  • Fully recharge the battery in less than 3 hours
  • 80% recharged in 1.5 hours
  • Genuine Plantronics accessory
  • Provides 8 hours talk time in the CS50 Wireless Headset (900 MHz technology)
  • Provides 10 hours talk time in the CS55 Wireless Headset (1.9 GHz technology)
  • Can be used in place of 64399-03
  • 3.75v, 190 MAh
  • Also has part number 65358-01 marked on this battery
  • Note: not interchangeable with battery for Plantronics Savi series or CS540 wireless headset
BTP Model: PL-64399-01
MFR Part: 64399-01

Additional information

Weight 0.0625 lbs
Dimensions 6.00 × 4.25 × 0.75 in


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Manufacturer discontinued.


“I want to let all of you at Business Telecom Products know that your customer support and high level of service is very much appreciated.”Read more

Joe S., Olympia, WA