Kastar Headset Battery for CS70 Plantronics CS70N CS70-N Savi 730 Voyager Pro | eBay
Kastar Battery Compatible With Plantronics 66278-01 Headset Battery Li-Pol, 3.7 Volt, 140 mAh - Ultra Hi-Capacity - Works for Plantronics CS70/N, 66278-01 Rechargeable Battery