Li-ion Lithium 18650 Battery Charging Module – UPS Protection Board
Optimizes supply needs with this Li-ion Lithium 18650 Battery Charging Module, designed for versatility, efficiency, and reliability. This UPS (Uninterruptible Power Supply) control board provides stable power output and safeguards your devices with advanced short-circuit protection.

Key Features:

1. Simultaneous Charging and Discharging: Ensures uninterrupted power delivery.
2. High Efficiency: Delivers reliable performance with minimal energy loss.
3. Compact Size: Perfect for space-saving applications.
4. Short Circuit Protection: Keeps your devices safe from electrical mishaps.
5. Large Current Capacity: Handles demanding tasks with ease.

Specifications:

• Product Name: UPS Voltage Converter Module
• Input Voltage: DC 5.0V–12.0V
• Output Voltage: DC 9V
• Output Power: 9W
• Compatible Batteries: 3.7V Lithium or polymer batteries (up to 15Ah, battery not included)
• Temperature Range: -40℃ to 85℃
• Humidity Range: 0%–95% RH
• Dimensions: 50mm x 20mm x 6.3mm

How to Use:

1. Connect the appropriate input voltage to the module’s input terminals.
2. Measure the output voltage using a voltmeter and ammeter.
3. Attach the 3.7V lithium or polymer battery to the B+ and B- terminals.

Important Notes:

1. Maximum output current is 1A; continuous operation at this limit is not supported.
2. Ensure correct polarity for input power to avoid damage.
3. Optional LED indicators can display charging status (blue for load, red for charging, flashing red for no battery).
4. Use thicker wires (≥1.5mm² cross-section) for large currents.
5. Review the user manual and product description carefully before use.

Applications:

• General power supplies
• Battery chargers
• Portable power banks
• Power conversion projects
• Infrared alarms
• Networking equipment (routers, switches)
• Electric vehicle modifications