A Microsoft Lumia 640 XL Battery BV-T4B
This Lumia 640 XL battery is an original Microsoft replacement battery for your Lumia phone. Due to its great durability and high performance, it is perfect as a backup or a replacement for an old battery that can no longer hold its charge.
- Model: BV-T4B
- Type: Li-Ion
- Capacity: 3000 mAh
- Voltage: 3.8 V