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Xiaomi BN4A Original-Capacity Replacement Battery (4000mAh)

Name: Xiaomi BN4A Original-Capacity Replacement Battery (4000mAh)
Brand: Xiaomi
SKU: 12710
Availability: InStock

Brand: Xiaomi

CODE: ARR

Original price was: 1,450.00৳ .Current price is: 1,150.00৳ .

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Description

The BN4A is a high-density internal Lithium-ion Polymer replacement battery engineered by Xiaomi for its heavily popular Redmi Note 7 series generation. Replacing a worn or aging factory cell with a fresh BN4A unit safely resolves issues such as extreme lagging when the charge drops below 20%, sudden random device freezing, and loop cycles on the “Redmi” or “Mi” startup logo.

Battery Model: BN4A
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 Infrastructure: Features a premium dual-IC Protection Circuit Module (PCM) to shield the legacy motherboard architecture from high-voltage surges, protect against overnight overcharging, and control cell thermal expansion.
Device Compatibility: This 4000mAh structural casing and flex ribbon connector precisely fit:
- Xiaomi Redmi Note 7
- Xiaomi Redmi Note 7 Pro
- Xiaomi Redmi Note 7S