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

Vivo B-A33 Battery for Vivo Y03 – 5000mAh

Brand: MT Star, Quality Beyond Comparison

5000mAh replacement battery for the Vivo Y03 (battery model B-A33). BIS certified, original-size fit, made by MT Star.

About this Product

The MT Star B-A33 is a 5000mAh replacement battery for the Vivo Y03. It brings back the all-day battery life the phone was bought for.

Vivo B-A33 battery specifications

Battery model B-A33
Compatible devices Vivo Y03
Capacity 5000mAh typical / 4880mAh rated
Nominal voltage 3.91V
Charge voltage limit 4.48V
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 Vivo Y03 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

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 Vivo Y03 use?

The Vivo Y03 uses the B-A33 battery. The MT Star B-A33 is a direct replacement for it.

What is the capacity of this Vivo Y03 battery?

This MT Star replacement battery has a capacity of 5000mAh.

Is the MT Star B-A33 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.

How do I know my Vivo Y03 battery needs replacing?

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

Should a technician install this battery?

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