Original Xiaomi Redmi Y1 / Y2 / Note 5A / Note 5A Pro / Mi A1 / Mi 5X Battery BN31 – 3080mAh

Replace your old, weak, or damaged battery with the Original Xiaomi BN31 3080mAh Replacement Battery, designed for compatible Xiaomi Redmi and Mi smartphone models. This Li-Ion Polymer battery provides reliable power and is suitable as a replacement for compatible devices using the BN31 battery model.

Xiaomi BN31 3080mAh Battery Features

• 3080mAh battery capacity for dependable everyday power.
• Li-Ion Polymer battery technology.
• Designed for compatible Xiaomi Redmi and Mi smartphones.
• Suitable for replacing an old, weak, or damaged battery.
• Helps restore battery backup and everyday device performance.
• Approximate voltage of 3.85V.
• 90 Days (3 Months) Warranty.
• Supplied in loose packing.

Compatible Models

This Redmi Note 5A Battery BN31 is compatible with the following devices:

Xiaomi Redmi Y1 / Redmi Note 5A

• Model: MDI6S
• Also known as: Redmi Y1 / Redmi Note 5A

Xiaomi Redmi Y2 / Redmi S2

• Models: M1803E6G, M1803E6H, M1803E6I

Xiaomi Mi A1 / Mi 5X

• Models: MDG2, MDI2

Compatible Battery Model

BN31

Please compare the battery model number and your device’s exact model before ordering.

Why Replace Your BN31 Battery?

With regular use, smartphone batteries naturally lose their original capacity. If your Xiaomi smartphone is experiencing fast battery drain, reduced backup, unexpected shutdowns, or charging problems, replacing the battery can help restore everyday usability.

The Redmi Note 5A Battery BN31 is designed as a replacement battery for compatible Xiaomi devices using the BN31 battery model.

Package Contents

• 1 × Xiaomi BN31 3080mAh Replacement Battery
• Loose Packing

Warranty

This battery comes with a 90 Days (3 Months) Warranty against applicable manufacturing defects.

Warranty does not generally cover damage caused by improper installation, physical damage, puncture, bending, short-circuiting, liquid damage, overheating due to misuse, or other user-induced damage.

Battery Safety Guidelines

• Do not puncture, bend, crush, or disassemble the battery.
• Keep the battery away from fire and excessive heat.
• Do not expose the battery to water or other liquids.
• Use the battery only with compatible devices.
• Professional installation is recommended.
• Stop using the battery if it becomes swollen, damaged, or unusually hot.
• Keep the battery away from children and pets.
• Dispose of the old battery through appropriate battery-recycling channels.

Before Ordering

Please verify the following before placing your order:

1. Your smartphone is one of the compatible models listed above.
2. Your existing battery model number is BN31.
3. The battery specifications match your original battery.
4. Your device’s exact model number matches the compatibility information.
5. Professional installation is recommended for safe battery replacement.

Frequently Asked Questions

Is BN31 compatible with Redmi Note 5A?

Yes. The BN31 3080mAh battery is listed as compatible with Xiaomi Redmi Note 5A / Redmi Y1 (MDI6S).

Is BN31 compatible with Redmi Y2?

Yes. The battery is listed for Xiaomi Redmi Y2 / Redmi S2, including models M1803E6G, M1803E6H, and M1803E6I.

Is BN31 compatible with Mi A1?

Yes. The BN31 battery is listed for Xiaomi Mi A1 / Mi 5X, including models MDG2 and MDI2.

What is the capacity of the Xiaomi BN31 battery?

The battery capacity is 3080mAh.

What is the voltage?

The approximate battery voltage is 3.85V.

How long is the warranty?

The battery comes with a 90 Days (3 Months) Warranty.

Is professional installation recommended?

Yes. Smartphone battery replacement requires opening the device, so professional installation by a qualified technician is recommended.

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