Product Name: COMPATIBLE Vivo Y28 / Y31 Battery (B‑77)
Compatible Models: Vivo Y28, Vivo Y31
Type: Internal Rechargeable Lithium‑Ion Battery
Function: Replaces degraded or faulty battery to restore battery life and performance
Installation: Internal repair (requires technician)
Condition: Compatible Replacement Part
Usage: Suitable for Vivo Y28 / Y31 battery replacement