Charge 12V battery, should choose the working voltage of 17V-22V (12v system standard voltage) around the solar panel; because it is 12v24v common models, so the open-circuit voltage of solar panels below 46v can be used if the solar panel voltage 32v Above, will lose one tenth of the power generation; solar panels maximum power of 240W.
2. Charge 24V battery, the best working voltage of solar panels about 36v, the maximum open circuit voltage can not exceed 46v, the maximum power of solar panels 480W.
 
3. The controller does not limit the battery capacity, as long as the voltage is 12V or 24V can be used; battery voltage 12v24v automatic identification.
4. Controller load output voltage is determined by the battery voltage, then 12V battery output is 12V, the output load for a long time continued to work can be accessed by the largest DC 168v DC 12v; 24V battery output is 24V, the output load Continuous work for a long time up to 336W of DC 24v with electrical appliances
5. The load can not be connected inverter, the inverter can be directly connected to the battery.

6 installation, please be sure to connect the battery, the controller began to work properly, then the solar panels.
7. Controller to the battery between the wires, the shorter the better, the more the better.