Original Infinix S4 (X626, X626B, X610B) Battery BL-39KX – 4000mAh

Infinix S4 Battery – BL-39KX 4000mAh

The Infinix S4 Battery BL-39KX is a 4000mAh Li-Ion Polymer replacement battery designed for compatible Infinix S4 smartphones. It is suitable for replacing an old or weak battery and is designed according to the listed battery specifications.

This BL-39KX battery features a 4000mAh capacity, approximately 3.85V voltage, and an estimated 2–3 hour charging time. It is supplied in loose packing and comes with a 90-day warranty.

Product Specifications

Compatible Models

The Infinix BL-39KX 4000mAh battery is compatible with:

• Infinix S4 – X626
• Infinix S4 – X626B
• Infinix S4 – X610B
• Infinix Hot 7 – X624
• Infinix Hot 7 Pro – X625D

Please verify your exact phone model and existing battery model before ordering.

Why Replace Your Infinix S4 Battery?

An aging smartphone battery may gradually lose its ability to hold a charge. Replacing the battery can help restore normal battery performance when the existing battery has become weak or unreliable.

A replacement battery may be required if your phone:

• Drains battery quickly
• Requires frequent charging
• Does not hold charge properly
• Shuts down unexpectedly
• Provides reduced battery backup
• Has charging-related battery problems

Common Signs of Battery Failure

Common signs that your Infinix battery may need replacement include:

• Fast battery drain
• Frequent charging
• Sudden phone shutdowns
• Battery percentage dropping quickly
• Reduced battery backup
• Battery not holding charge
• Inconsistent charging performance

Original Infinix S4 Replacement Battery

The BL-39KX replacement battery is designed for compatible Infinix S4 X626, X626B, and X610B smartphones, along with the other listed compatible models.

It provides a 4000mAh capacity, approximately 3.85V voltage, and uses Li-Ion Polymer battery technology.

Important Installation Information

Battery replacement should be performed by a qualified mobile technician.

• Switch off the phone before installation.
• Use proper tools and installation procedures.
• Do not bend, puncture, crush, or damage the battery.
• Do not short-circuit the battery terminals.
• Keep the battery away from excessive heat and moisture.
• Do not install a battery that appears damaged or swollen.

Warranty Information

This Infinix BL-39KX battery comes with a 90-day warranty against manufacturing-related defects under normal usage.

Warranty does not cover:

• Physical damage
• Punctured, bent, or crushed batteries
• Incorrect installation
• Water or liquid damage
• Burn or overheating damage caused by misuse
• Unauthorized modification
• Normal battery wear and capacity degradation

Battery Safety Guidelines

• Keep the battery away from fire and excessive heat.
• Do not puncture, crush, or disassemble the battery.
• Do not short-circuit the battery terminals.
• Do not use a damaged or swollen battery.
• Keep the battery away from children and pets.
• Dispose of old batteries through appropriate battery-recycling facilities.

Before Ordering

Before purchasing the Infinix S4 Battery BL-39KX, please verify:

1. Your exact phone model number.
2. The battery model printed on your existing battery.
3. Battery connector and physical compatibility.
4. Battery capacity and voltage.
5. Compatibility with the model numbers listed above.

Please verify compatibility before installation.

Customer Support

Email: support@batteryhub.online
Call / WhatsApp: 8356885211
Support Hours: 11:00 AM – 8:00 PM
Sunday: Closed

Frequently Asked Questions

1. What is the battery model for Infinix S4?

The battery model is BL-39KX.

2. What is the capacity of the Infinix S4 BL-39KX battery?

The battery capacity is 4000mAh.

3. Is this battery compatible with Infinix S4 X626?

Yes. Infinix S4 X626 is listed as a compatible model.

4. Is this battery compatible with Infinix S4 X626B?

Yes. Infinix S4 X626B is listed as compatible.

5. Is Infinix S4 X610B compatible with this battery?

Yes. Infinix S4 X610B is included in the requested compatibility list.

6. What is the voltage of the BL-39KX battery?

The approximate voltage is 3.85V.

7. How long does the battery take to charge?

The approximate charging time is 2 to 3 hours, depending on the phone and charging conditions.

8. What warranty is provided?

The battery comes with a 90-day warranty.

9. Does the battery come in box packing?

No. It comes in loose packing.

10. Where is this battery manufactured?

The country of origin is China.

• Infinix S4 Battery
• Infinix S4 X626 Battery
• Infinix S4 X626B Battery
• Infinix S4 X610B Battery
• Infinix BL-39KX Battery
• BL-39KX 4000mAh Battery
• Infinix S4 Replacement Battery
• Infinix S4 4000mAh Battery
• Infinix Hot 7 Battery
• Infinix Hot 7 Pro Battery
• Infinix Hot 7 X624 Battery
• Infinix Hot 7 Pro X625D Battery
• Infinix Mobile Battery Replacement

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Original Infinix S4 BL-39KX 4000mAh Battery for X626, X626B and X610B

Related Infinix Batteries

Looking for another genuine Infinix battery replacement? Explore these related Infinix battery models, available in different capacities and designed for compatible Infinix smartphones. Before ordering, always compare your phone model and existing battery model number with the product specifications.

• Original Infinix Hot S (X521) Battery BL-30QX – 3000mAh
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  The BL-39AX battery is designed for compatible Infinix Hot 4 Pro X556 and X5511 smartphones, providing dependable replacement power and extended battery backup.
  View Infinix Hot 4 Pro BL-39AX Battery