2) VARTA CP1254 A3 3.7v Li-Ion Rechargeable Battery w/ Tabs - SONY Sa
Where can I find the genuine varta battery for wf-1000xm3 : r/SonyHeadphones
VARTA CP1254 Samsung Bluetooth headset bracelet electronic LIR1254 rechargeable sub A3 3.7V with solder feet as shown in the picture 1PCS | Shopee Malaysia