2pcs Varta CP1254 A4 Battery for Sony WF-1000XM3 WF-1000X WF-SP700N Headphones

Battery Type: Li-ion. 1.Li-Ion Laptop Battery 10.8V and 11.1V are in common use. 2.Li-Ion Laptop Battery 14.4V and 14.8V are in common use.

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