UltraLast – Lithium-Polymer Batteries for Plantronics 84479-01 (2-Pack)

Stay connected without interruptions with this multipack of UltraLast cordless headset replacement batteries. The convenient design works with select Plantronics cordless headset models for dependable performance, and the rechargeable format delivers lasting use. These UltraLast cordless headset replacement batteries offer fast, easy installation so you can get back to work.
Compatible with select models
Including Plantronics CS540, CS540A, Savi CS540, and Savi CS540A.
Lithium-polymer batteries
Supply reliable power to a wide variety of household electronics.
3.7V of power
Delivers a reliable, long-lasting charge to your electronics.
Rechargeable design
Delivers power efficiently.
2-pack
Ensures you have extra batteries on hand.