Automatic power‑switch module with battery protection — key benefits Prevents battery damage and extends battery life: built‑in battery voltage protection automatically disconnects the load when battery voltage reaches the preset cutoff, avoiding deep discharge. Keeps your equipment powered without interruption: the module seamlessly switches between mains adapter and battery power so critical devices stay online. Protects system and battery: integrated overcharge, overdischarge and overcurrent protection reduce the risk of faults and unsafe conditions. Durable, reliable connections and stable output: precision manufacturing and screw‑terminal wiring ensure consistent performance and secure, vibration‑resistant connections. What it does (functions and indicators) Automatic load disconnect at preset voltage: when the battery voltage falls to the configured cutoff, the module opens the load circuit to prevent over‑discharge. Dual power source switching: when an adapter is plugged in the module uses mains power (green LED on); when the adapter is removed or mains fails it switches to battery power (red LED on). Charging behavior: when mains is available the module can continue to charge the battery while supplying the load, with protections in place to prevent overcharge. Protections included: overcharge protection, overdischarge protection, and overcurrent protection to secure both battery and connected devices. Compatibility and connections Works with systems where input and output voltages are the same; suitable for setups that require the same voltage on supply and load. Screw‑terminal design provides strong, reliable connections for power and battery wiring without soldering. Designed for straightforward integration into existing equipment that uses a DC adapter plus backup battery. Performance and build Constructed with advanced manufacturing processes to deliver stable, predictable performance under normal operating conditions. Screw terminals and clear LED status indicators make installation, commissioning and monitoring simple and dependable. Typical applications (how customers use it) Incubators and laboratory equipment: preserves battery backup and prevents deep discharge during intermittent power, while maintaining safe charging when mains returns. Small servers, desktop PCs or network devices: provides uninterrupted power switching for critical electronics that require a stable DC supply and a battery backup. Home and small office network gear: keeps routers, switches and modems running during outages and protects attached batteries from overuse. Why choose this module Solves the common problem of battery over‑discharge and unexpected shutdowns by combining automatic cutoff and seamless source switching. Clear LED indicators and secure screw terminals reduce installation errors and simplify status checks. Built to provide consistent protection and performance for a range of DC backup and dual‑source applications.