India’s Biggest Mobile
Battery Brand
India’s Biggest Mobile
Battery Brand

MI BM4J Battery for Redmi Note 8 Pro – 4500mAh

Brand: MT Star, Quality Beyond Comparison

4500mAh replacement battery for the Redmi Note 8 Pro (battery model BM4J). BIS certified, original-size fit, made by MT Star.

About this Product

When the Redmi Note 8 Pro starts draining fast or switching off early, the battery is usually the cause. The MT Star BM4J restores 4500mAh of capacity with the original size and connector.

MI BM4J battery specifications

Battery model BM4J
Compatible devices Redmi Note 8 Pro
Capacity 4500mAh typical / 4400mAh rated
Nominal voltage 3.85V
Charge voltage limit 4.4V
Battery type Rechargeable lithium-ion polymer
Certification BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017
Series MT Star Premium Series

Signs your Redmi Note 8 Pro needs a new battery

  • The phone only works while plugged into the charger
  • Charging takes far longer than it did when the device was new
  • The battery drains much faster than it used to
  • The phone shuts down suddenly at 10-30% charge

Why choose MT Star

Every MT Star Premium Series battery is made to the original size and connector, so it fits like the original. Each cell is BIS certified and tested for safe, stable output, and manufacturing defects are covered by easy returns.

  • BIS certified
  • Original size & connector
  • Easy returns

Frequently asked questions

Which battery does the Redmi Note 8 Pro use?

The Redmi Note 8 Pro uses the BM4J battery. The MT Star BM4J is a direct replacement for it.

What is the capacity of this Redmi Note 8 Pro battery?

This MT Star replacement battery has a capacity of 4500mAh.

Is the MT Star BM4J battery safe?

Yes. It's certified under BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 and is made to the original size and connector.

Should a technician install this battery?

Yes. For phones with glued backs we recommend fitting by a trained mobile repair technician.

How should I charge a new replacement battery?

Use a good-quality charger suited to your phone. After fitting, charge it fully and use it normally for the first few cycles so the battery indicator calibrates.