Description:
XH-M603 (HCW-M632) is a programmable battery charge management controller that turns on the relay when the voltage drops to a predetermined low level and turns off when the high threshold is reached.
 
On the board of the device is a seven-segment indicator that visualizes the voltage. The accuracy of the DC voltage display is 0.1 V. Also, under the indicator, there are 2 buttons with which you can set the threshold values of the charge controller:
UP (left): increases the value
DOWN (right): decreases the value
The power source and battery are connected to the device using a terminal block.

Terminal assignments:
IN +: Charger positive terminal
IN -: Charger negative terminal
BAT+: Positive battery terminal
BAT -: Battery Negative
 
XH-M603 Charging Control Module 12-24V Storage Lithium Battery Charger
Control Switch Protection Board
1. Model: XH-M603
2. Input Voltage: DC 10-30V
3. Display Precision: 0.1V
4. Control Precision:0.1V
5. Output Type: direct output
6. Voltage Tolerance: +/-0.1V
7. Application Fields: 12-24V storage battery
8. Size; 82*58*18mm
 
Using Method:
1.Set Starting Voltage: in normal display voltage state, press the button will display start charging voltage; long press for 3s the digital tube will flash; you can start or stop button to set starting up charge voltage value
2. Set Stop Voltage: in normal display voltage state, press the button will display stopping charge voltage; long press the button for 3s the digital tube will flash; you can start or stop the button to set stopping charge voltage value
3. Factory Reset: in power on state press the start/stop button at the same time, digital tube will display 888; that represents factory reset settings