BougeRV BJ4880F - Faq

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20. FAQ
Q1: What information should I provide with BougeRV to get technical support faster and
better?
Send the following information to the email: service @ bougerv.com.
1. The connection method of the solar panels (series/parallel, quantity, voltage, power).
2. The voltage and battery type of the battery.
3. The display data of the controller: battery voltage, battery charging current, the output voltage of the solar panel.
4. Connection from solar panel to controller and controller to the solar panel.
If the above information can be provided with pictures or videos, BougeRV can provide you with technical support
faster.
Q2: Why is the battery not charging after I connected the solar panel?
There may be the following reasons: the solar panel line is connected reversely, the output voltage of the solar panel is
lower than the battery voltage, and the output voltage of the solar panel is greater than the maximum PV input
voltage.
1. Check if the polarity from the PV terminal to the controller is correct.
2. Check the output voltage of the solar panel. lf the output voltage of the solar panel is lower than the battery voltage,
you need to connect the solar panels in series to increase the voltage; if the output voltage of the solar panel is higher
than 150V, you need to reduce the output of the solar panel.
Q3: Why does the controller show that the output current is very low?
1. The output current may be low due to weak light or shadows of solar panels.
2. The battery may enter the float charge stage and therefore the current drops. You can use a multimeter to check
the battery voltage to determine whether the battery enters the float charge stage.
Q4: What matters should be paid attention to in the daily use of the controller?
1. Ensure that the system voltage and battery type of the controller are set correctly.
2. The controller should be installed as close to the battery as possible to avoid the voltagedrop caused by too long
wires, which will affect the normal voltage judgment.
3. The controller should be installed in a well-ventilated, non-humid environment.
Q5: What should I pay attention to when connecting to APP?
1. Bluetooth function is available and turning on in your mobile phone.
2. GPS function is available and turning on in your mobile phone.
3. Android firmware version 5.0 or above, or lOS firmware version 9.0 or above.