Product Name: Replacement Battery for Samsung Galaxy Z Fold 4 – EB-BF936ABY / BF937ABY
Compatible Model: Samsung Galaxy Z Fold 4 (SM-F936B)
Battery Model: EB-BF936ABY (left side) / BF937ABY (right side)
Battery Type: Lithium‑ion (dual‑cell)
Function: Replace aged, swollen, or non‑working battery – restores battery life and device runtime
Capacity: Original capacity match (approx. 4400 mAh combined)
Voltage: 3.88V
Included: Complete battery assembly with pre‑attached BMS flex cable
Installation: Direct replacement – no soldering required
OEM: Yes – high quality replacement with dual IC safety system for maximum protection, stable and secure charging, smart overheat detection, protection against power surges, consistent power output, and extra safety assurance for used or unknown part repairs