1. Self-test
Once the controller is connected to the battery, the automatic test function will start immediately, and then the controller will enter the normal operation state.
2. System Voltage
The controller can identify the 12V system voltage. If the battery voltage is between 10V and 15V during startup, the controller will correctly identify it,otherwise the controller will display an error state, please refer to the fault description to find out the cause.
3. Battery Type
This series of controllers is suitable for liquid and gel batteries, and the factory default setting is suitable for liquid batteries.