1st step: Connect the battery
Connect the battery connection cable with the correct polarity to the middle pair of terminals on the solar
charge controller (with the battery symbol). If the system is 12V, please make sure that the battery voltage is
within 8.5V~15.5V, else if the system is 24V, the battery voltage should between 20V~30V. If the polarity is
correct, the LCD on the controller will begin to show.
2nd step: Connect the solar module
Ensure that the solar module is protected from incident light. Ensure that the solar module does not exceed
the maximum permissible input current. Connect the solar module connection cable to the correct polarity of
the left pair of terminals on the solar charge controller (with the solar module symbol).
3rd step: Connect loads
Connect the load cable to the correct polarity of the right pair of terminals on the solar charge controller (with
the lamp symbol). To avoid any voltage on the wires, please connect the wire to the load before connect to the
controller.
4th step: Final work
Tighten all cables connected to the controller and remove all the debris around the controller (leaving a space
of approx. 15 cm).
5.5 Grounding
Be aware that the negative terminals of controller are connected together and therefore have the same
electrical potential. If any grounding is required, always do this on the negative wires.
WARNING: Risk of electric shock! Exercise caution when handing solar wiring. The solar PV
array can produce open-circuit voltages in excess of 100V when in sunlight. Pay more
attention to it.
WARNING: Risk of explosion! Once the battery's positive and negative terminals or leads that
connect to the two terminals get short-circuited, a fire or explosion will occur. Always be
careful in operation.
CAUTION: 1.If no temperature sensor is connected to the controller, the battery temperature
value will display the internal temperature.
2.If an inverter is deployed in the system, directly connect the inverter to the battery, and do
not connect it to the controller's load terminals.
CAUTION: For common-negative system, such as motorhome, it is recommended to use a
common-negative controller; but if in the common-negative system, some common-positive
equipment are used, and the positive electrode is grounded, the controller may be damaged.
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General