6V 100mA Mini Solar Panel - 70x70mm Polycrystalline DIY Solar Cell for Projects

Product Description The 6V 100mA Mini Solar Panel is a compact and durable energy harvesting module designed for small-scale electronics and educational science projects. This 70x70mm square cell is constructed from high-efficiency polycrystalline silicon, protected by a weather-resistant epoxy resin coating. It is an ideal power source for charging small batteries, driving low-power DC motors, or powering wireless sensor nodes in remote locations. Its lightweight and rigid PCB backing make it easy to solder and integrate into custom enclosures for solar-powered toys, garden lights, and IoT prototypes.

Key Features

• High Efficiency Cells: Utilizes polycrystalline silicon technology to provide reliable power conversion even in sub-optimal sunlight conditions.

• Durable PET Lamination: The surface is laminated with PET film, offering excellent UV resistance and protection against light rain or dust.

• Portable & Lightweight: At only 18 grams, it is perfect for weight-sensitive applications like solar-powered gliders or portable chargers.

• Easy Soldering: Features large, pre-tinned copper pads on the rear side for secure wire attachment with standard soldering irons.

• Versatile 6V Output: Designed specifically to interface with 5V logic systems or charge 3.7V Li-ion batteries via a charging controller.

Technical Details

• Peak Power (Pmax): 0.6W output under standard test conditions (1000W/m², 25°C).

• Open Circuit Voltage (Voc): Reaches up to 7.2V without a load, allowing for overhead in charging circuits.

• Short Circuit Current (Isc): Max current of 110mA ensures consistent performance for low-power applications.

• Epoxy Resin Encapsulation: Provides a smooth, high-transparency finish that maximizes light absorption while protecting the cells.

• Operating Temperature: Maintains stable performance in outdoor temperatures ranging from -20°C to 80°C.

• Rigid PCB Substrate: The solar cells are mounted on a high-quality glass fiber PCB to prevent cracking during handling.

• Environmental Friendly: A clean, noise-free energy solution for reducing the carbon footprint of small electronic devices.

• Low Light Performance: Engineered to generate measurable voltage even in overcast or cloudy weather.

• Ultra-Thin Profile: Only ~2-3mm thick, allowing for flush mounting on flat or slightly curved surfaces.

• Connection Type: Features clearly marked (+) and (-) terminal pads for correct polarity during assembly.

• Corrosion Resistance: The rear soldering pads are treated to resist oxidation, ensuring long-term electrical conductivity.

• DIY Friendly: Widely used in school STEM projects and university research for renewable energy demonstrations.

• Maintenance Free: No moving parts; simply keep the surface clean from dust to maintain maximum efficiency.

• Scalable Design: Multiple panels can be connected in series (for more voltage) or parallel (for more current) for larger power needs.

• Impact Resistance: The PET coating provides a degree of impact protection against small debris or accidental drops.