320mAh 3.7V Replacement Battery for Jabra Speak 510, 100-43100000-02 Wireless Bluetooth Speaker, AHB582035PR-03, 1ICP6/20/35 - Newegg.com
Replacement Wireless Charging Box for Jabra Elite 85t Bluetooth-compatible Earphone Type-C Charger Case with LED Indicator 700mAh Battery - Walmart.com
For Jabra Boost & Jabra Classic Bluetooth Headset 90mAh Replacement Battery | eBay
3.7v 100mah Replacement Battery For Bluetooth Headphone Headset Jabra Bt500v Bt2020 - Rechargeable Batteries - AliExpress