Original Xiaomi Redmi Note 7S (M1901F71) Battery BN4A – 4000mAh

The Redmi Note 7S Battery BN4A is a 4000mAh Li-Ion Polymer replacement battery designed for compatible Xiaomi Redmi smartphones. With approximately 3.85V voltage and a specified charging time of 2 to 3 hours, this battery is suitable for replacing an old, weak, or degraded battery.

The Xiaomi BN4A battery is listed as compatible with Xiaomi Redmi Note 7, Redmi Note 7 Pro, and Redmi Note 7S models mentioned below.

Xiaomi BN4A Battery Specifications

Compatible Models

The Redmi Note 7S Battery BN4A is listed as compatible with:

• Xiaomi Redmi Note 7 – M1901F7G, M1901F7H, M1901F7I
• Xiaomi Redmi Note 7 Pro – M1901F7S
• Xiaomi Redmi Note 7S – M1901F71

Key Features

• BN4A battery model
• 4000mAh battery capacity
• Li-Ion Polymer battery technology
• Approx. 3.85V voltage
• Specified charging time of 2 to 3 hours
• Approximate weight of 55.5g
• Designed for compatible Xiaomi Redmi smartphones
• Suitable replacement for an old or degraded battery
• 180 Days (06 Months) warranty
• Supplied in loose packing

Why Replace Your Redmi Note 7S Battery?

Smartphone batteries naturally lose capacity with regular use. If your existing battery provides less backup than before or requires frequent charging, a compatible replacement battery can help restore dependable everyday power.

Common signs of battery degradation include:

• Fast battery drain
• Reduced battery backup
• Frequent charging
• Unexpected shutdowns
• Battery percentage dropping quickly
• Battery not holding a charge properly

Package Contents

• 1 × Xiaomi BN4A 4000mAh Replacement Battery
• Loose Packing

Warranty

This Redmi Note 7S Battery BN4A comes with a 180 Days (06 Months) warranty.

Avoid physical damage, puncturing, bending, short-circuiting, liquid exposure, overheating, or improper installation.

Battery Safety Guidelines

• Have the battery installed by a qualified technician.
• Do not puncture, bend, crush, or disassemble the battery.
• Keep the battery away from excessive heat and open flames.
• Do not short-circuit the battery terminals.
• Keep away from water and other liquids.
• Do not use a swollen or physically damaged battery.
• Follow proper installation and charging procedures.

Before Ordering

Please check your existing battery model and smartphone model carefully before placing your order.

Confirm that your device matches one of the compatible models listed below:

Xiaomi Redmi Note 7 – M1901F7G, M1901F7H, M1901F7I

Xiaomi Redmi Note 7 Pro – M1901F7S

Xiaomi Redmi Note 7S – M1901F71

Frequently Asked Questions

Is BN4A compatible with Redmi Note 7S?

Yes. The BN4A battery is listed as compatible with Xiaomi Redmi Note 7S (M1901F71).

What is the capacity of the Redmi Note 7S Battery BN4A?

The battery has a specified capacity of 4000mAh.

What type of battery is BN4A?

The BN4A is a Li-Ion Polymer battery.

What is the voltage of the BN4A battery?

The specified voltage is approximately 3.85V.

Is BN4A compatible with Redmi Note 7?

Yes. It is listed as compatible with Xiaomi Redmi Note 7 (M1901F7G, M1901F7H, M1901F7I).

Is BN4A compatible with Redmi Note 7 Pro?

Yes. It is listed as compatible with Xiaomi Redmi Note 7 Pro (M1901F7S).

What is the charging time?

The supplied specification lists the charging time as 2 to 3 hours.

What is the warranty period?

The battery comes with a 180 Days (06 Months) warranty.

• Redmi Note 7S Battery BN4A
• Redmi Note 7S Replacement Battery
• Xiaomi Redmi Note 7S Battery
• BN4A 4000mAh Battery
• Xiaomi BN4A Battery
• Redmi Note 7 Battery BN4A
• Redmi Note 7 Pro Battery BN4A
• Xiaomi Redmi Note 7 Replacement Battery
• Xiaomi Redmi Note 7 Pro Replacement Battery
• BN4A Replacement Battery

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