Xiaomi BN47 Original-Capacity Replacement Battery (4000mAh)

The BN47 is a premium, high-density internal Lithium-ion Polymer replacement battery engineered by Xiaomi for its mainstream budget and entry-level series. If your phone is experiencing typical battery wear—such as dropping percentages instantly during gaming, randomly turning off when the camera flash fires, or swelling up and pushing the back panel outward—installing a true-capacity BN47 cell safely restores the device to its factory standby runtime.

• Battery Model: BN47

• Battery Type: Lithium-ion Polymer (Li-Po)

• True Capacity: 4000 mAh (Typical) / 3900 mAh (Rated)

• Standard Voltage: 3.85V

• Charging Voltage Limit: 4.4V

• Safety Framework: Features a premium dual-IC Protection Circuit Module (PCM). This circuitry prevents deep discharge decay, safely balances 10W/18W charging speeds, and halts voltage intake once the battery hits 100% to avoid thermal swelling.

• Device Compatibility: This 4000mAh structural casing and specific flex connector clip fit directly into:

  • Xiaomi Redmi 6 Pro

  • Xiaomi Mi A2 Lite