Custom mini solar panels

MR WATT offers innovative solutions for integrating mini solar panels on existing electronic devices, previously powered by non-rechargeable batteries or newly designed. These custom-made panels allow for the transformation of products already on the market, adding an ecological feature that is up-to-date.

"Simple and Customized Integration"

Thanks to our custom solar cell cutting technology, we can adapt the panels to the specific needs of each device. The small size of our mini panels allows for direct installation on the available surface of the product, without the need for structural modifications. This approach facilitates the adoption of solar energy in a wide range of applications, from lighting to furniture, from boating to the Internet of Things, to devices used in agriculture for water conservation.

"High-Quality Materials for Long-Lasting Durability"

Our mini panels can be made with different materials, including:

  • Epoxy Resin: offers rigidity and resistance, ideal for small devices like toys, garden lamps, and external sensors.

  • PET: suitable for larger panels, up to about 5W of power, usable in objects like backpacks and jackets.

  • ETFE: If you need a long-lasting panel, but cannot use a glass panel, ETFE panels are the most durable against yellowing caused by UV rays.
  • Glass: ensures greater durability over time, making the panels suitable for applications that require long operational life.

"Advantages of Using Mini Solar Panels"

  • Reduced maintenance: eliminating the need to frequently replace non-rechargeable batteries.

  • Environmental sustainability: reducing the use of disposable batteries and promoting the use of renewable energies.

  • Versatility: possibility of application in various sectors, improving the energy efficiency of electronic devices.

Correspondence Table between Battery Voltage and Solar Panel

To ensure efficient charging of the batteries used in all mini photovoltaic charging systems, it is essential to correctly match the voltage of the solar panel to the device's battery. Below is an indicative guide:​

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Nominal Battery Voltage Recommended Solar Panel Voltage
1.2V 2V ~ 2.5V
2.4V 3.5V ~ 4V
3.6V 5V ~ 6V
3.7V 5.5V ~ 6V
4V 6V ~ 7V
4.8V 7V ~ 8V
6V 8V ~ 9V
12V 15V ~ 18V

Note: These values are indicative; for optimal design, it is advisable to consult an expert or the device manufacturer.

Conclusion

The adoption of MR WATT's mini solar panels represents a significant step towards sustainable innovation, allowing existing devices to be upgraded with a clean and renewable energy source. Our experience and customization capability ensure solutions suitable for every need, contributing to a greener and more technologically advanced future.

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