Vivo B-G7 Original-Capacity Replacement Battery (5000mAh)

The B-G7 is a very popular high-capacity internal Lithium-ion Polymer replacement battery manufactured for a wide lineup of Vivo’s most successful long-battery life budget smartphones. Because these specific phones are heavily utilized as daily workhorses and delivery devices across Bangladesh, their factory cells eventually degrade over years of intense charge cycles. Common failure signs include structural back panel swelling, losing battery percentages rapidly once it drops under 30%, or the system getting trapped in an infinite boot loop on the “Vivo” logo. Swapping in a fresh B-G7 cell restores the phone to its signature multi-day backup performance.

• Battery Model: B-G7

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

• True Capacity: 5000 mAh (Typical) / 4900 mAh (Rated)

• Standard Voltage: 3.85V

• Charging Voltage Limit: 4.4V

• Safety Layout: Programmed with an integrated dual-IC Protection Circuit Module (PCM). This chip acts as a safety firewall that monitors device temperatures, prevents cell expansion, and guards the motherboard against sudden electrical shortages caused by low-grade charging cables.

• Device Compatibility: This exact 5000mAh structural profile and flex connecter dock precisely match:

  • Vivo Y11 (2019 / Model: 1906)

  • Vivo Y12 / Y12i (Model: 1904, 1940)

  • Vivo Y15 (2019 / Model: 1901)

  • Vivo Y17 (Model: 1902)

  • Vivo Y3 / Y3s

  • Vivo U10 / U3x

  • Vivo Z1 Pro