Why the connected device cannot be charged?

Please check if your device is well connected to the solar charger or if the connecting cable works normally. Re-plug the cable or try with another cable.

Why the connected device is charged slowly?

Ensure that the input current and voltage of the device to be charged are within acceptable limits. As well as the sunlight intensity and light angle will have an effect on the charging efficiency.

How to clean the solar panel surface?

You can use a soft sponge or damp cloth to wipe the surface of the solar panel, removing any remaining dust and dirt.

Can I use the ETERSUN solar panel to charge a third-party power station?

A: If the third-party power station meets all three criterias listed below:

If the third-party power station supports solar charging
If the third-party power station supports the voltage input of our Solar panels

If you have any more questions, please reach out to us via serives@etersun.com and we will respond within 24 business hours.

Can solar panels generate electricity without direct sunlight?

Solar panels do not rely solely on direct sunlight to generate electricity. They operate on ultraviolet light, which is still present during cloudy conditions. Therefore, solar panels can produce power even on overcast days, albeit at significantly reduced efficiency due to weaker sunlight.

Can foldable solar panel directly charge devices like phones?

Yes, foldable solar chargers can directly charge phones and similar devices as long as there is sufficient sunlight and the voltage matches. Most phones require a 5V1A charge, corresponding to 5W. A 7W solar panel is generally enough to meet this need. However, charging can be interrupted during cloudy conditions or at night, which is why pairing solar chargers with batteries is beneficial. Batteries ensure devices can be charged anytime, providing a stable current and prolonging the device's battery life.

Why can't my panel generate the rated current to charge my outdoor power station?

In real-world conditions, it's nearly impossible for panels to operate in a perfect and stable environment. This variability means that the current produced by the panels will fluctuate with changes in environmental conditions.

Do portable solar panels cause environmental pollution?

Portable solar panels are a non-polluting energy source throughout their use. They are particularly beneficial for outdoor enthusiasts as they provide a means to charge devices like smartphones and cameras using solar power, eliminating the worry of running out of battery when there is ample sunshine.

How many watts should I choose for a foldable solar panel?

To determine the wattage for a foldable solar panel, you need to consider the amount of electricity required for your devices. Solar panels come in various wattages, which is a measure of electrical power. Higher-wattage panels are larger and more expensive, so the ideal panel wattage would depend on which devices you need to power.

How can I maximize the efficiency of my solar panel when in use?

  1. Proper Placement: Angle the panel to face the sun directly for optimal exposure.
  2. Shadow Management: Keep the panel clear of any shadows, as they can significantly reduce productivity.
  3. Cleanliness: Regularly clean the panel to prevent dust or debris from lowering efficiency.
  4. Ventilation: Place the panel in a well-ventilated area to keep it cool.

How do I measure the voltage and current of a foldable solar panel?

The most straightforward method to measure the voltage and current of a foldable solar panel is by using a multimeter under proper lighting conditions to test the outputs at the panel's positive and negative terminals.