Replacement battery Z55H for Sony WF1000XM4 XM4 WF-SP700N WF-1000XM3 2pcs Z55H
Z55H Fit Machine Models For Sony WF1000XM4 WF-SP900 Headphones. Usually not. Don’t worry, this is normal. Battery TypeLi-ion. Tablet battery has 6 months warranty, the laptop battery has 12 months warranty.