Li-ion MD-390 Battery Pack TYT MD 390 MD-UV390 DMR Radio 7.4V 2200mAh Battery for MD-390 TH-UV8200 Digital Radio TYT Accessory - AliExpress
7.4V 2200MAh Battery for TYT MD-390 [DISCONTINUED]– Radioddity
Amazon.com: Duracell 389/390 Silver Oxide Button Battery, 1 Count Pack, 389/ 390 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More : Health & Household
RENATA 390 ( 1130s ) Silver Oxide Batteries ( High Drain ), 1.55 V-1 S – uptowntools
Amazon.com: Duracell 389/390 Silver Oxide Button Battery, 1 Count Pack, 389/ 390 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More : Health & Household
Digital Battery Tester and Analyzer 6V/12V | PulseTech 390-PT – Primary Mover