Xiaomi BN5M Original-Capacity Replacement Battery (5000mAh)

The BN5M is a high-density, modern internal Lithium-ion Polymer replacement battery engineered by Xiaomi for its heavily distributed Redmi Note 12 series generation. Because this device runs a high-refresh-rate display and active background processing, a degraded battery will result in fast percentage drops under heavy load, sudden shutoffs at low power thresholds, or phone thermal heating. Replacing it with a fresh BN5M cell safely restores your phone’s native multi-day standby lifecycle.

• Battery Model: BN5M

• 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: Calibrated to fully interface with Xiaomi’s rapid fast-charging protocols without triggering thermal throttling.

• Safety Engineering: Outfitted with an integrated Protection Circuit Module (PCM) and dual-IC safety components to protect against overnight overcharging, control operational temperatures, and eliminate chemical cell expansion.

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

  • Xiaomi Redmi Note 12 4G (Global / Model 23021RAAEG, 23021RAA2Y)