Xiaomi BN5D Original-Capacity Replacement Battery (5000mAh)

The BN5D is a modern, high-density internal Lithium-ion Polymer replacement battery engineered by Xiaomi for its widely popular generation of Redmi Note and Poco mid-range smartphones. Because these devices actively utilize 90Hz AMOLED displays and demanding processors, a degraded battery will cause performance throttling, sharp percentage drops under heavy load, or random device resets during photography. Swapping in a fresh BN5D cell completely restores your phone’s native multi-day standby lifecycle.

• Battery Model: BN5D

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

• True Capacity: 5000 mAh (Typical) / 4900 mAh (Rated)

• Standard Voltage: 3.87V

• Charging Voltage Limit: 4.45V

• Fast Charge Support: Integrates perfectly with Xiaomi’s 33W Pro fast-charging protocols without triggering thermal choking.

• Safety Engineering: Outfitted with an upgraded Protection Circuit Module (PCM) using a dual-IC design to protect against high-voltage surges, over-discharge decay, and chemical cell swelling.

• Device Compatibility: This 5000mAh structural profile and flex connector precisely match:

  • Xiaomi Redmi Note 11 (4G / Global Snapdragon Edition)

  • Xiaomi Redmi Note 11S (4G)

  • Xiaomi Redmi Note 12S

  • Xiaomi Poco M4 Pro (4G variant)