Xiaomi BN46 Original-Capacity Replacement Battery (4000mAh)

The BN46 is a premium, high-density internal Lithium-ion Polymer replacement battery engineered by Xiaomi for its massive wave of mid-range and entry-level smartphones. If your device is frequently shutting down unexpectedly, dropping percentages rapidly during video calls, or causing the phone frame to bulge from cell swelling, swapping in a fresh BN46 cell safely restores factory-standard runtime.

• Battery Model: BN46

• 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 Layout: Features an upgraded Protection Circuit Module (PCM) with a premium dual-IC controller chip. This architecture actively guards against high-voltage surges, short circuits, and over-discharge while capping voltage intake at 100% capacity to prevent swelling.

• Device Compatibility: This specific structural casing and flex ribbon connector clip fit perfectly into:

  • Xiaomi Redmi Note 6 Pro

  • Xiaomi Redmi 7

  • Xiaomi Redmi 8T