Universal Single Slot 3.7V Li-Ion Battery Charger for 18650

Universal 3.7V Li-Ion Battery Charger for 18650, 26650, and More – Single Slot Charger

Product Overview

The Universal 3.7V Li-Ion Battery Charger is a compact, portable, and efficient charging solution designed for a wide range of 3.7V lithium-ion rechargeable batteries, including 18650, 14500, 17500, 18500, 26650, 10440, 16340, and 17670. This single-slot charger is perfect for home use, travel, or professional applications. With its built-in LED indicators, you can easily monitor the charging status, while the advanced protection system ensures safe and reliable charging by preventing overcharging, short circuits, and overheating. Whether you're a DIY enthusiast, a tech hobbyist, or a professional, this charger is an essential tool for keeping your batteries powered and ready to use.

Product Specifications

Features

• Universal compatibility with 3.7V Li-Ion batteries (18650, 14500, 17500, 18500, 26650, 10440, 16340, 17670).
• Compact and portable design for easy use at home or on the go.
• Built-in LED indicators for real-time charging status monitoring.
• Advanced safety features including overcharge, short circuit, and overheating protection.
• Single-slot charging for focused and efficient battery charging.
• Wide input voltage range (AC 100-240V) for global use.

Applications

• Ideal for charging batteries used in flashlights, power banks, and portable devices.
• Perfect for DIY projects, robotics, and electronics enthusiasts.
• Great for professionals using rechargeable batteries in their tools and equipment.
• Suitable for emergency backup devices and outdoor activities.

User Guide / How to Use

1. Insert the 3.7V Li-Ion battery into the charger's slot, ensuring proper alignment of the positive and negative terminals.
2. Plug the charger into an AC power outlet (100-240V).
3. The LED indicator will light up, showing the charging status (red for charging, green for fully charged).
4. Once the battery is fully charged, unplug the charger and remove the battery.
5. Store the charger in a cool, dry place when not in use.

Documentation

For detailed instructions and safety guidelines, refer to the user manual included in the package. Always follow the manufacturer's recommendations to ensure safe and optimal use of the charger.

Frequently Asked Questions (FAQs)

Q1: Can this charger be used for other battery types?
A: No, this charger is specifically designed for 3.7V Li-Ion batteries only.

Q2: How long does it take to fully charge a 18650 battery?
A: Charging time depends on the battery capacity. For a standard 2600mAh 18650 battery, it takes approximately 5-6 hours.

Q3: Is this charger safe to use overnight?
A: Yes, the charger has built-in protection features to prevent overcharging, making it safe for overnight use.

Challenges and Considerations

• Only one battery can be charged at a time, which may be inconvenient for users with multiple batteries.
• The 450mA output current may result in slower charging for high-capacity batteries like 26650.
• Not compatible with non-3.7V Li-Ion batteries or other battery chemistries.

Benefits

• Provides a reliable and safe charging solution for a wide range of 3.7V Li-Ion batteries.
• Compact and portable design makes it easy to carry and use anywhere.
• Advanced protection features ensure the longevity of your batteries.
• Affordable and efficient, making it a great value for money.

Conclusion

The Universal 3.7V Li-Ion Battery Charger is a must-have tool for anyone using rechargeable lithium-ion batteries. Its universal compatibility, compact design, and advanced safety features make it a reliable choice for both personal and professional use. Whether you're powering up batteries for your flashlight, power bank, or DIY projects, this charger ensures efficient and safe charging every time. Invest in this high-quality charger today and keep your batteries ready for action!