2PCS ZeniPower 1240 (Z52H) 3.85V Replacement Batteries for Sony LinkBuds S (WF‑LS900N /B)

This listing includes two (2PCS) ZeniPower replacement batteries, model 1240 (Z52H) rated 3.85V as listed, intended for Sony LinkBuds S earbuds, compatible with WF‑LS900N /B models. Ideal for earbud battery repair when runtime has dropped significantly or one side no longer holds charge. Please confirm the battery model, size, and connector/wire layout match your original batteries before ordering.

Battery Details

• Brand: ZeniPower
• Battery Model: 1240 (Z52H)
• Voltage: 3.85V
• Compatible Device (as listed): Sony LinkBuds S earbuds
• Compatible Models (as listed): WF‑LS900N /B
• Battery Type: Rechargeable (earbud internal battery)
• Quantity: 2PCS
• Condition: New Replacement

Important Notes

• Earbud repair requires disassembly and micro‑soldering; professional installation is recommended.
• Verify battery dimensions and wire polarity match your original parts before purchase.

Package Includes

• 2 × ZeniPower 1240 (Z52H) 3.85V Replacement Batteries