4-Slot 18650 Li-ion Battery Charger with LED Indicators

Reliable 4-slot charger for 18650 and compatible Li-ion batteries.

This 4-slot lithium battery charger is designed for users who rely on 18650 and similar Li-ion cells in flashlights, tools, and electronic devices. Four fully independent charging bays allow you to charge one or multiple batteries at the same time without interference. The charger supports a wide range of cylindrical Li-ion sizes, including 10440, 14500, 16340, 16650, 14650, 18350, 18500, and 18650.

Powered by an AC 110-240 V, 50/60 Hz input, the charger delivers a DC 4.2 V / 600 mA charging output per slot (max), providing a stable and controlled charge. A built-in control circuit monitors each battery and automatically cuts off at approximately 4.23 V to prevent overcharging. The two-color LED indicators clearly show status at a glance: red while charging and green when the battery is fully charged and ready for use.

Why It's a Smart Choice

• Four independent charging slots - Charge one to four batteries simultaneously, each managed separately for consistent performance.
• Integrated safety protections - Overcharge, overheat, and reverse polarity protection help safeguard both your batteries and the charger.
• Compact, travel-ready design - At approximately 125 × 92 × 30 mm, it fits easily in a bag or toolkit for home, workshop, or on-the-go charging.

FAQ

Q: Which battery types are compatible with this charger?
A: It is suitable for rechargeable Li-ion cylindrical cells in sizes 10440, 14500, 16340, 16650, 14650, 18350, 18500, and 18650.

Q: Can I charge different battery sizes at the same time?
A: Yes. Each of the four slots charges independently, so you can mix supported sizes and charge them simultaneously.

Q: How do I know when charging is complete?
A: The LED indicator above each slot turns from red to green when that battery reaches full charge and charging automatically stops.

Q: Does this charger support Ni-MH or Ni-Cd batteries?
A: No. This charger is designed specifically for compatible Li-ion batteries only. Do not use it with Ni-MH, Ni-Cd, or non-rechargeable cells.