Undervoltage controller module that automatically disconnects a load when battery voltage falls below a userset threshold and reconnects it when voltage recovers to the set turnon level. Designed for simple operation and reliable protection of battery systems. Key benefits Prevents deep discharge and protects battery life by cutting power to the load when voltage drops below the set value. Restores power automatically when the battery charges back to the preset turnon value, eliminating the need for manual intervention. Simple adjustment of both turnoff and turnon thresholds using onboard buttons, allowing precise control to match your battery type and usage. LED status indicator clearly shows when the battery is in undervoltage condition for quick system checks. Compact, easytoinstall module that reduces continuous monitoring and helps maintain system reliability. Main features Function: Monitors battery voltage and switches the load off and on based on adjustable thresholds. Controls: Both turnoff and turnon values are userconfigurable by pressing the module buttons. Indicator: Onboard LED indicates undervoltage status so you can see system condition at a glance. Compatibility: Designed for use with DC battery systems and DC loads in a wide range of applications. Form factor: Compact electronic module suitable for inline installation in batterypowered circuits. Typical applications Automotive and recreational vehicles: Protect starter batteries from being discharged by accessories, audio systems, or lighting. Offgrid solar and battery backup systems: Prevent deep discharge of battery banks and automatically reconnect loads when charging resumes. Marine and camping setups: Manage onboard power for lights, pumps, and electronics to avoid stranded batteries. How it solves common problems Eliminates accidental deep discharge by disconnecting nonessential loads when voltage is too low. Reduces downtime by automatically reconnecting loads after the battery recovers, so systems to service without manual resetting. Makes threshold tuning straightforward with button adjustment, so you can set levels appropriate for leadacid, AGM, gel, or other battery types without complex tools. What to expect Straightforward installation in DC circuits where battery protection is needed. Clear visual feedback via the LED for quick troubleshooting. Adjustable control logic that adapts to different battery behaviors and usage patterns. This module provides a practical, useradjustable solution for protecting batterypowered systems from undervoltage conditions while automating recovery when conditions allow.