Rechargeable Lithium‑Ion / Lithium‑Ion Polymer (Li‑Po) smartphone battery — a flat, lightweight pouch cell designed for internal use in mobile devices.
Specifications
Model Number: BL‑39KX (SKU/Part No: 20IV981_Te)
Battery Type: Rechargeable Lithium‑ion / Lithium‑ion Polymer (Li‑Po) internal smartphone battery
Capacity: 3900 mAh (≈ 15.01 Wh) — typical rated capacity
Nominal Voltage: 3.85 V
Maximum Charge Voltage: ~4.40 V (common for Li‑Po cells)
Chemistry: Lithium‑ion / Lithium‑polymer style pouch cell
Compatibility: Designed for Infinix Hot 7 (X624) smartphones
Certifications: CE, RoHS, FCC (may also include UL/ISO depending on seller)
Protection: Built‑in protection board (over‑charge/discharge, short‑circuit safe operation) — typical of modern replacement batteries
Condition: Brand‑new replacement battery
Form Factor: Flat internal battery pack — requires phone disassembly for replacement
📌 Summary (BL‑39KX):
• Type: Rechargeable Li‑ion/Li‑Po internal battery
• Capacity: 3900 mAh / 15.01 Wh
• Voltage: 3.85 V nominal
• Max Charge Voltage: ~4.40 V
• Certifications: CE / RoHS / FCC
• Compatible With: Infinix Hot 7 X624
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🔋 BL‑39EX Battery — Specifications
Model Number: BL‑39EX (SKU/Part No: 20IV1271_Te)
Battery Type: Rechargeable Lithium‑ion (Li‑ion / Li‑Po) internal smartphone battery
Capacity: 3900 mAh (≈ 15.01 Wh)
Nominal Voltage: 3.85 V
Maximum Charge Voltage: ~4.40 V
Chemistry: Lithium‑ion/Li‑Po pouch cell
Compatibility: For Infinix Hot 5 / Hot 5 Lite (X559) models
Certifications: CE, RoHS, FCC, UL (varies by seller)
Protection: Typical built‑in protection against over‑charge/discharge, short‑circuit (on replacement versions)
Condition: Brand‑new replacement battery
Form Factor: Internal battery pack requiring professional installation
📌 Summary (BL‑39EX):
• Type: Rechargeable Li‑ion/Li‑Po internal battery
• Capacity: 3900 mAh / 15.01 Wh
• Voltage: 3.85 V nominal
• Max Charge Voltage: ~4.40 V
• Certifications: CE / RoHS / FCC / UL
• Compatible With: Infinix Hot 5 / Hot 5 Lite (X559)
