The Mini Router DC UPS Power Board (40W) is a high-performance, uninterruptible power supply module designed to keep your essential networking gear online during power outages. At Electrapac, we recommend this board for anyone building a custom backup system for WiFi Routers, ONUs, or IP Cameras that cannot afford a second of downtime.

Product Overview

This 40W powerhouse is more than just a charger; it is a sophisticated power management system. It supports a 12V Lead-Acid or Lithium battery input and provides multiple regulated outputs (5V, 9V, and 12V). When mains power is present, it charges the battery and powers your device; the moment the grid fails, it switches to battery power with zero millisecond delay, preventing your router from rebooting.

Key Features for Electrapac Customers

• Triple Voltage Output: Most routers run on 9V or 12V, while ONUs or Raspberry Pis often need 5V. This board provides all three, allowing you to power your entire networking closet from one module.

• 40W High Power Capacity: Unlike smaller 10W modules, this board can easily handle "power-hungry" dual-band WiFi 6 routers and multiple IP cameras simultaneously.

• Integrated Battery Gauge: Features a built-in 4-LED fuel gauge that tells you exactly how much "juice" is left in your backup battery (25%, 50%, 75%, 100%).

• Zero-Delay Switching: The "True UPS" architecture ensures that your internet connection doesn't drop when the power toggles, which is critical for Zoom calls, gaming, and security monitoring.

• Heavy-Duty Terminals: Designed with robust soldering points or screw terminals to handle the 40W current flow without melting or voltage drops.

Wiring & Setup Guide

To build a reliable Electrapac DIY UPS, follow this connection logic:

1. DC Input: Connect a 12V–15V power adapter (at least 3A–4A recommended) to the input terminals.

2. Battery: Connect a 12V battery (Lead-acid or a 3S 18650 Lithium pack) to the B+ and B- terminals.

3. Outputs: * Use the 12V output for most modern routers.

   • Use the 9V output for older routers or specific ONU models.

   • Use the 5V output for USB-powered devices or smart hubs.

4. Heat Sink: Because this is a 40W board, ensure it is mounted in a ventilated case if you are drawing maximum current.

Primary Applications

• WiFi Router & ONU Backup: Keep your home internet running for 4–8 hours (depending on battery size) during load shedding.

• CCTV Security: Ensuring your IP cameras and NVR continue recording even if an intruder cuts the main power lines.

• Smart Home Hubs: Providing constant power to Zigbee or Z-Wave gateways that control your home automation.

• Fingerprint/Access Control: Powering magnetic door locks and biometric scanners that must remain functional for safety.

• Emergency Lighting: Driving 12V LED strips automatically when the main lights go out.

Why Shop at Electrapac?

We source the 40W UPS Board with industrial-grade capacitors and low-resistance MOSFETs to ensure your internet stays stable and your batteries stay healthy. At www.electrapac.com, we provide the professional-grade backup solutions that keep your digital life connected 24/7.