For SONY WF1000XM4 Headphones
3.85V 70MAH
For SONY WF-SP700N, 900 XB700, H800, 1000XM3
3.7V 0.24Wh
For Samsung Galaxy Buds+TWS ZeniPower Z75 1454 CP1454 & Bose Headphones
3.7V 70MAH