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

MI BN37 Battery for Redmi 6A, 6 – 3000mAh

Brand: MT Star, Quality Beyond Comparison

3000mAh replacement battery for the Redmi 6A and Redmi 6 (battery model BN37). BIS certified, original-size fit, made by MT Star.

About this Product

Keep the Redmi 6A working for years with the MT Star BN37. This 3000mAh battery is BIS certified and made to the same size and flex connector as the original.

Compatible models

  • Redmi 6A
  • Redmi 6

MI BN37 battery specifications

Battery model BN37
Compatible devices Redmi 6A, Redmi 6
Capacity 3000mAh typical / 2900mAh 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 6A needs a new battery

  • The device gets hot while charging or during normal use
  • The battery percentage jumps or drops unexpectedly
  • The back panel or screen is lifting (a sign of a swollen battery)
  • The phone only works while plugged into the charger

Why choose MT Star

Safety comes first with MT Star. Our batteries are certified to IS 16046 and IEC 62133-2, built to the original dimensions, and backed by our support team and easy returns for manufacturing defects.

  • BIS certified
  • Original size & connector
  • Easy returns

Frequently asked questions

Which phones does the BN37 battery fit?

The MT Star BN37 battery fits the Redmi 6A and Redmi 6.

What is the capacity of this Redmi 6A battery?

This MT Star replacement battery has a capacity of 3000mAh.

Is the MT Star BN37 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.

Can I buy MT Star batteries in bulk?

Yes. MT Star supplies distributors and repair shops across India. Contact us to become a distributor.

How do I know my Redmi 6A battery needs replacing?

Common signs are fast draining, sudden shutdowns at 10-30%, heating while charging, or a swollen battery lifting the back panel.