Y31 / BK77

A high-capacity replacement battery for VIVO, model Y31 / BK77, designed for dependable performance.

• Brand: VIVO
• Model: Y31 / BK77
• Capacity: 1900mAh
• PCBA Type: -
• Battery Type: Lithium Ion
• Voltage: 3.87V
• Charging Time: 90 minutes

Features:

• High Capacity
• Tested Quality
• Longer Service Life
• 100% New
• Easy to Fit
• Use Cell Type

Note: Before replacing the battery, make sure your mobile should be in working condition.

Direction: New battery must be fully charged and discharged 2 to 3 times before being used.