Features 1、This is a battery charging protection switch module that can control charging of 12V-24V storage batteries 2、The start voltage and stop voltage of this control module can be set according to your need 3、Support battery voltage detection, automatically stop charging when battery is fully charged 4、If you set 10V as start voltage and 14V as stop, then module will charge battery when voltage is lower than 10V, and stop charging when voltage is higher than 14V 5、Press run and stop button together, the module will display 888 and restore to factory setting Specification Features: This is a battery charging protection switch module that can control charging of 12V-24V storage batteries. Support battery voltage detection, automatically stop charging when battery is fully charged. Press run and stop button together, the module will display 888 and restore to factory setting. Specifications: Input Voltage: DC 10V-30V Display Accuracy: 0.1V Control Accuracy: 0.1V Output Type: Direct output Voltage Error: +/-0.1V Used for: 12V-24V storage batteries Size: 82*58*18mm / 3.22*2.28*0.7" Package Includes: 1 x Module Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List