Uninterruptible power supply function Provides seamless operation by directly powering your devices while simultaneously charging the lithium battery, ensuring no interruptions during power failures. efficiency boost circuit Features a peak power of 20W and a rated power of 15W with efficiency up to 96%, helping reduce energy waste. Selectable output options Offers adjustable output voltages of 5V, 9V, or 12V to accommodate a variety of devices for functionality under a recommended load of 15W. Comprehensive battery protection Includes essential protection features such as overcharge and over temperature safeguards to protect the lithium battery from damage. Benefits and why you need it Keeps essential devices running during power outages by supplying load directly while charging the battery. Reduces energy waste with a efficient boost circuit. Adapts to different devices with three selectable voltages for flexible use. Helps extend battery life and reliability with built in overcharge and over temperature protection. Applications and use scenarios Home backup: keep a router, modem, and USB devices powered during outages while the battery remains charged. Travel or remote work: charge phones, tablets, and other small USB devices with a single, versatile power solution. Desk or small office: power peripherals such as external drives or small displays that require 5V, 9V, or 12V within a 15W load. Key specifications Peak power: 20W; rated power: 15W Output voltages: 5V, 9V, 12V Efficiency: up to 96% Protection: overcharge and over temperature safeguards for the lithium battery