Universal Dual Battery Charger for Li-ion Battery

🔋 Universal Dual Battery Charger for Li-ion Battery

🔹 Product Overview

The Universal Dual Li-ion Battery Charger is a compact and reliable charging solution designed to charge two lithium-ion batteries simultaneously.

It supports multiple battery sizes such as 18650, 14500, 16340, 26650, and other cylindrical Li-ion cells, making it ideal for electronics enthusiasts, technicians, and DIY users.

With independent charging slots and automatic voltage detection, this charger ensures safe and efficient battery charging.

🔹 Key Features

• ✅ Charges 2 batteries at the same time

• ✅ Compatible with multiple Li-ion sizes

• ✅ Independent charging channels

• ✅ Automatic voltage detection

• ✅ Smart charging with auto cut-off

• ✅ LED charging indicator

• ✅ Overcharge protection

• ✅ Short circuit protection

• ✅ Compact and portable design

🔹 Supported Battery Types

• 18650

• 14500

• 16340 (CR123A)

• 18500

• 26650

• Other 3.7V cylindrical Li-ion batteries

⚠ Only for 3.7V Li-ion batteries (not for NiMH/NiCd unless specified by model).

🔹 Technical Specifications

🔹 How It Works

1. Insert battery with correct polarity.

2. Plug charger into power source.

3. LED indicates charging status.

4. Automatically stops charging at 4.2V (full charge).

🔹 Applications

• 🔦 Flashlights

• 🚴 E-bike battery maintenance

• 🤖 Robotics projects

• 🔋 Power bank battery charging

• 🧪 DIY electronics

🔹 Advantages

✔ Charges two batteries simultaneously
✔ Automatic cut-off at full charge
✔ Safe and reliable
✔ Easy to use
✔ Compact and lightweight

🔹 Safety Instructions ⚠

• Insert battery with correct polarity

• Do not mix different battery types

• Do not charge damaged batteries

• Use only compatible Li-ion cells

• Keep away from water and heat