Details

---

Professional 4-Slot 18650 Li-ion Smart Battery Charger 🔋⚡

Automate and safeguard your power supply with this High-Capacity 4-Slot Smart Charger, specifically engineered for the popular 18650 lithium-ion battery series. This unit provides independent charging channels, allowing you to charge multiple batteries of varying discharge levels simultaneously without overcharging.

Available in both AC Plug-in and USB-powered configurations to suit home or mobile charging needs.

Key Performance Features

• Independent 4-Slot Design: Each of the four bays operates independently with its own dedicated charging circuit and status indicator.

• Intelligent LED Monitoring: Features clear LED indicators for each slot—typically showing Red for active charging and Green once the battery reaches full capacity.

• Universal Battery Compatibility: While optimized for 18650 cells, the spring-loaded negative terminals support a range of Li-ion sizes including 10440, 14500, 16340, 18350, and 18500.

• Integrated Safety Suite: Built-in protection prevents damage from Battery Reverse Polarity, over-voltage, and short circuits.

• Robust Build Quality: Constructed from high-impact, flame-retardant plastic with durable spring contacts for consistent power delivery.

Technical Specifications

• Input Types: Micro-USB (5V) or Integrated AC Power Cord.

• Compatible Chemistries: Lithium-Ion (Li-ion) 3.7V - 4.2V.

• Charging Status: LED indicators (Red = Charging / Green = Full).

• Safety Features: Reverse Protection & Independent Charging.

Typical Applications

• High-Drain Electronics: Ideal for users of high-powered flashlights, laser pointers, and portable power banks.

• Vaping Devices: Provides a reliable and safe method for charging standard 18650 mod batteries.

• DIY Projects: Essential for hobbyists building custom battery packs or testing recovered lithium cells.

• Emergency Preparedness: Keep a full set of high-capacity cells ready for emergency lighting and communication gear.

Top 3 Customer Questions & Concerns 🙋‍♂️

🔌 Can I charge different brands of batteries at the same time? Yes. Because each slot is independent, you can mix and match different brands or capacities of 18650 batteries without affecting the charging speed or safety of the other cells.

⚠️ What happens if I put the battery in backward? The charger is equipped with Battery Reverse Protection. If a cell is inserted with the polarities swapped, the charger will simply not activate that slot, protecting both the battery and the device from a short circuit.

🔋 How long does it take to charge 4 batteries? Charging time depends on the capacity of your batteries (mAh) and the power input. Generally, high-capacity 18650 cells take between 3 to 6 hours to reach a full charge from a depleted state.