Product Name: COMPATIBLE Vivo Y21T / Y33T Battery (B‑T7)
Compatible Models: Vivo Y21T, Vivo Y33T
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 Y21T / Y33T battery replacement