Amazon.co.jp: Audio-Technica Regzat Power Regulator AT-RX100 Battery delivers stable power to maximize the original performance of your car audio : Automotive
Audio-Technica Consumer Battery for the Sound Burger 799900170
Tudor Technica | Exide
Replace the Battery in ATH-M50xBT with a $10 Amazon Battery (Note: It's EASY) : r/audiotechnica