15W 3A 18650 Lithium Battery UPS & Step-Up Boost Module – 5V / 9V / 12V

The 15W 18650 Lithium Battery UPS & Boost Module combines lithium battery charging, battery protection, boost conversion and automatic UPS switching into one compact power-management solution. It provides seamless switching between external 5 V power and battery power, with selectable 5 V, 9 V or 12 V output for low-power DC electronics and portable projects.

🔹 Key Applications

Uninterruptible power supplies for low-power DC equipment Portable electronics and battery-powered projects Electronic meters and instrumentation DIY UPS and backup power systems Embedded electronics requiring continuous power Portable IoT and control systems

🔹 Why Choose This Module?

Automatic UPS switching — transfers to battery power when external power is lost 15 W rated output with up to 20 W peak power Selectable 5 V / 9 V / 12 V boost output Up to 96% boost conversion efficiency Integrated lithium battery charging and protection Supports 18650 cells with two integrated battery holders Over-charge, over-discharge, over-temperature and over-current protection

🔹 Technical Specifications

Input: DC 5 V Output: 5 V / 9 V / 12 V Rated Power: 15 W Peak Power: Up to 20 W 5 V Output: Up to 3 A 9 V Output: Up to 1.6 A 12 V Output: Up to 1.2 A Boost Efficiency: Up to 96% MOSFET: Integrated 12 A MOS Static Power Consumption: Approximately 25 mA Battery: 18650 Lithium Battery Protection: Over-charge, over-discharge, over-temperature, over-current Module Size: 89 × 42 × 22.4 mm

🔹 What's Included

1 × 15W 18650 Lithium Battery UPS & Boost Module

🔹 Pro Tip

💡 For applications requiring longer backup times, multiple compatible lithium cells can be connected in parallel to increase battery capacity. Always ensure the connected load remains within the module's recommended power rating.

⚠️ Note: The module requires a suitable 18650 battery for UPS operation. Normal operating loads should remain below 15 W.