BL-39Li Original-Capacity Replacement Battery (4000mAh)

The BL-39Li (often labeled as BL-39LI) is a highly popular internal Lithium-ion Polymer replacement battery manufactured under the Transsion Holdings supply chain for various budget-focused Itel and Tecno smartphones. Since these entry-level devices are widely used for daily media consumption and communication across Bangladesh, a degraded cell will typically cause the phone to freeze up, lose power rapidly under 25%, or reboot continuously on the “Itel” logo screen. Swapping in a premium BL-39Li unit safely restores the device to its factory-standard battery life.

• Battery Model: BL-39Li / BL-39LI

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

• True Capacity: 4000 mAh (Typical) / 3900 mAh (Rated)

• Standard Voltage: 3.85V

• Charging Voltage Limit: 4.4V

• Safety Infrastructure: Equipped with a standard double-IC Protection Circuit Board (PCB) to prevent severe chemical swelling, safeguard your motherboard from sudden electrical shortages, and safely regulate internal temperatures.

• Device Compatibility: This exact 4000mAh physical structural footprint and flat flex connector dock map precisely to:

  • Itel Vision 1 / Vision 1 Pro

  • Itel Vision 2

  • Itel A56 / Itel A56 Pro