Plantronics Lithium-Ion Battery (Black) for Plantronics Supra Plus Wireless Headset Plantronics Lithium-Ion Battery (Black) for Plantronics Supra Plus Wireless Headset This replacement Li-Ion battery for the Plantronics Supra Plus wireless headset provides up to eight hours talk time and takes less than three hours to be fully recharged. Specifications Features : Plantronics Supra Plus Wireless Lithium-Ion Battery Fully charged - 3 hours Talk time - 8 hours 80% charged- 1. 5 hours Battery Size : Other Battery Type : Lithium Form Factor : Battery Marketing : This replacement Li-Ion battery for the Plantronics Supra Plus wireless headset provides up to eight hours talk time and takes less than three hours to be fully recharged. Pack Quantity : 1 Product Family : Supra Plus Product Type : Lithium Battery