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

Oppo BLP765 Battery for Oppo F15, Reno 3, A91 – 4025mAh

Brand: MT Star, Quality Beyond Comparison

MT Star BLP765 battery for the Oppo F15, Oppo Reno 3 and Oppo A91. 4025mAh, Li-ion polymer, certified to IS 16046 for safe everyday use.

About this Product

The Oppo F15, Reno 3 and A91 are slim, camera-focused phones that people still use every day. The MT Star BLP765 is a 4025mAh replacement that brings back their original battery life and steady performance.

Compatible models

  • Oppo F15
  • Oppo Reno 3
  • Oppo A91

Oppo BLP765 battery specifications

Battery model BLP765
Compatible phones Oppo F15, Oppo Reno 3, Oppo A91
Capacity 4025mAh typical / 3935mAh rated
Nominal voltage 3.87V
Charge voltage limit 4.45V
Battery type Rechargeable lithium-ion polymer
Certification BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 (R-41280119)
Series MT Star Premium Series

Signs your Oppo F15 needs a new battery

  • Charging takes far longer than it did when the phone was new
  • The battery drains much faster than it used to
  • The phone shuts down suddenly at 10-30% charge
  • The phone gets hot while charging or during normal use

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 BLP765 battery fit?

The MT Star BLP765 battery fits the Oppo F15, Oppo Reno 3 and Oppo A91. It’s the same battery for all of these models.

What is the battery capacity of the Oppo F15?

This replacement BLP765 battery has a capacity of 4025mAh, matching the Oppo F15’s original battery.

Is the MT Star BLP765 battery safe?

Yes. It’s certified under BIS IS 16046 (Part 2): 2018 and IEC 62133-2: 2017 (R-41280119) and is made to the original size and connector.

How do I know my Oppo F15 battery needs replacing?

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

Should a technician install this battery?

Yes. We recommend having it fitted by a trained mobile repair technician, because modern phones have glued backs and delicate connectors.