12V Mini UPS

A 12V Mini UPS is a compact backup power device designed to provide uninterrupted power to low-voltage electronic devices during power failures. It is commonly used for Wi-Fi routers, ONU devices, CCTV cameras, biometric systems, access control devices, and networking equipment. These mini UPS units usually operate with 12V DC output and include built-in rechargeable lithium batteries that automatically switch to battery power with zero interruption when electricity fails. Many models support multiple voltage outputs such as 5V, 9V, and 12V, allowing compatibility with different devices. They are lightweight, easy to install, and provide backup times ranging from 2 to 10 hours depending on the device load and battery capacity. Features often include over-charge protection, over-discharge protection, short-circuit protection, LED battery indicators, and USB charging ports.