Vivo B-F3 Original-Capacity Replacement Battery (4030mAh)

The B-F3 (often labeled as BF3) is an internal Lithium-ion Polymer replacement battery engineered by Vivo for its highly successful generation of Y-series smartphones. If your device is struggling to hold a charge, dropping rapidly from 30% to empty, or looping on the Vivo boot screen, installing a fresh, premium B-F3 cell completely restores its native runtime.

• Battery Model: B-F3 / BF3

• Battery Type: Lithium-ion Polymer (Li-Po)

• True Capacity: 4030 mAh (Typical) / 3935 mAh (Rated)

• Standard Voltage: 3.85V

• Charging Voltage Limit: 4.4V

• Safety Engineering: Outfitted with an integrated Protection Circuit Module (PCM) to safeguard against short circuits, sudden power surges, and thermal expansion during extended use.

• Device Compatibility: This exact structural profile and flex connector layout is highly cross-compatible across several popular Vivo models:

  • Vivo Y91 / Y91i / Y91C

  • Vivo Y93 / Y93s / Y93 Lite

  • Vivo Y95

  • Vivo Y90

  • Vivo Y1s

  • Vivo U1