TTVXO for Plantronics Explorer 500 Bluetooth Headset Battery LSSP371031AB|Smart Accessories| - AliExpress
310mAh 1.15Wh Battery for Plantronics Backbeat Sense Wireless Bluetooth Headset | eBay
Amazon.com: Synergy Digital Wireless Headset Battery, Works with Plantronics C054 Wireless Headset, (Li-Pol, 3.7V, 140 mAh) Ultra Hi-Capacity, Compatible with Plantronics CS540 Battery : Electronics
2 Step Plantronics Battery Replacement Guide For CS351n, CS361n, C052
Having Problems With Your Voyager Legend Battery? Here's what you need to know. – Merrittcomm Blog | Wired & Wireless Headsets, Productivity, Efficiency
3.7V 100mAh Replacement Battery for Plantronics Voyager Legend Wireless Bluetooth Headset - Walmart.com