Two Way Lithium Battery Boost Module 12V UPS Protection Charging board

A compact, all-in-one UPS-style module that switches seamlessly between a 12 V power input and a single-cell or dual-cell lithium battery. It boosts battery voltage to 12 V output, provides automatic charging when external power is available, and includes safety protections. Ideal for applications like small routers, 12 V LED systems, or backup power in compact devices.

Features:

• Automatic, delay-free switching between external power and battery power—acts as a UPS

• Boost circuit delivering stable 12 V output (peak ~20 W, rated ~15 W)

• Integrated charging and protection: over/under-voltage, over-current, short-circuit safeguard

• Comes with dual 18650 battery holders or board-mounted variant

• LED indicators for power and charging status

• Ideal for uninterrupted power in small DC equipment, sensor hubs, routers