Automatic DC Backup Battery Switch — 5V–48V • 10A Ensure uninterrupted DC power for critical devices with an automatic power supply/battery switch module designed for emergency control and generator applications. This module monitors a primary DC power source and automatically transfers the load to a backup battery (or secondary DC source) when the primary supply fails, then returns to the primary supply when power is restored. Key benefits Prevents downtime: automatic, hands switchover keeps equipment running during power interruptions. Simple compatibility: works with a wide range of DC systems in the 5V–48V range. Adequate power handling: supports continuous DC current up to 10A for many small to medium loads. Versatile use: functions as an emergency controller, generator module, or general power supply controller. Main features and attributes Voltage range: 5V to 48V DC — compatible with common DC systems within this range. Current rating: rated for up to 10A DC continuous load. Functionality: automatic switchover between primary DC power and backup battery/secondary DC source; designed to maintain continuous power to the connected load. Application types: suitable for emergency backup, generator interface modules, UPSlike backup for DC devices, and general power supply control tasks. Electrical compatibility: intended for DC systems; not for AC use. Typical use cases Emergency backup for network and security equipment: automatically switch to battery power if the primary DC supply fails so routers, modems, CCTV cameras, and access control systems remain online. Generator or secondarysource interface: use the module to manage automatic transition between a primary DC power supply and a generatorfed or auxiliary battery source during outages or maintenance. Smallscale DC power systems: protect and control power delivery for offgrid equipment, sensors, or instrumentation that require uninterrupted DC power up to 10A. Installation and operation notes Designed to be wired inline between the primary DC supply, backup battery (or secondary DC source), and the load. Operates across the specified DC voltage range; ensure system voltage and current do not exceed 5V–48V and 10A respectively. Intended for DC power control and emergency transfer; follow standard electrical safety practices during installation. What this module delivers Reliable, automatic transfer of DC load between power sources within the specified voltage/current limits. A practical and compact solution for maintaining continuous DC power in critical or remote installations where manual switching is impractical. Ensure your system's primary voltage and load current fall within the module's 5V–48V, 10A specifications before installation.