Home Page Link


Battery for CS351/361 & WO300/350 Wireless Headsets – DISCONTINUED

Discontinued – Click for more info

Replacement Battery for Plantronics Legacy Headband Style Wireless Headset Systems

  • Manufacture Discontinued 08/23 – No Replacement
  • Compatible with discontinued CS351/CS351N, CS361/CS361N, WO300 and WO350 Wireless Headset Systems
  • 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 headset, remove the rubber door from the bottom of the headset and use the enclosed tool to help remove the battery
  • Fully recharge the battery in less than 3 hours
  • 80% recharged in 1.5 hours
  • Original battery that came in your wireless headset
  • Plantronics one year manufacturer’s warranty
  • Provides 10 hours talk time in the SupraPlus Wireless, up to 9 hours in Savi series
  • 3.75v, 190 mAh
  • Also has part number 65358-01 marked on this battery
  • Genuine Plantronics accessory
BTP Model: PL-64399-03
MFR Part: 64399-03

Additional information

Weight 0.0625 lbs
Dimensions 6 × 4.25 × 0.75 in


There are no reviews yet.

Be the first to review “Battery for CS351/361 & WO300/350 Wireless Headsets – DISCONTINUED”

Your email address will not be published. Required fields are marked *

Our Unmatched, Value-added Service Saves You Time, Money and Hassles:

  • Experienced consultants help you choose exactly the products you need, preventing unnecessary purchases
  • Free user setup help and training
  • 100% satisfaction guaranteed
  • Our team is committed to answering every call live during business hours
  • Same-day response to emails
  • Same-day shipping
  • Full warranty facilitated by BTP


For customer service, sales inquiries, and technical support, contact us Monday“Friday, 8-5 Pacific Time. (After-hours messages and emails are promptly returned the following business day.)

Call: 800-457-4287 or 425-649-9262

Email: info@btpi.com

Manufacture Discontinued.


“Thanks again for the great service BTPI has provided to me over the past years, I would not hesitate to recommend you to anyone looking for a headset orRead more

Glenn H. (Olympia, WA)