Amazon.com: Replacement Battery Part No.1973822,PLB-103 for Bang & Olufsen BeoPlay H7,BeoPlay H8,H7,Wireless Headset Battery,650mAh/2.41Wh : Health & Household
Amazon.com: Tectra 2X PLB-103 Battery and LED Charger for Bang & Olufsen BeoPlay H7, BeoPlay H8, BeoPlay H9, BeoPlay H9i, H7, H8 1973822 and Sanyo DB-L20 VPC-C40, VPC-C5, VPC-C6, VPC-CA6, VPC-CA65 :
26650 NMC PLB Cylindrical 5000mAh High Energy Density Rechargeable Battery for EV Scooter Solar ESS Trolly Golf Cart|Rechargeable Batteries| - AliExpress