1. Introduction
This manual provides essential information for the safe and efficient use of your ExpertPower 100W Flexible Solar Panel. Please read these instructions carefully before installation and operation to ensure optimal performance and longevity of your solar panel.

Figure 1: ExpertPower 100W Flexible Solar Panel
The ExpertPower 100W Flexible Solar Panel is designed for various applications, including RVs, boats, camping, and generator charging. Its flexible and lightweight design makes it suitable for curved surfaces and portable use.
2. Product Features
- High Efficiency: Utilizes Maxeon Monocrystalline solar cells, offering 22-25% efficiency for maximum power output.
- Flexible Design: Constructed with top-grade, lightweight polymer materials, allowing flexibility up to 30 degrees for adaptation to various surfaces.
- Lightweight: Weighs approximately 4.4 lbs (2 kg), enhancing portability and ease of handling.
- Durable Construction: Built on a solid copper foundation, resistant to power loss from cracking and corrosion. Features a Micro Junction box with IP67 protection for robust weather resistance.
- Easy Connectivity: Equipped with MC4 cable connectors for simple plug-and-play connection to solar generators and other compatible systems.
- Simple Mounting: Pre-drilled holes facilitate secure mounting on vehicles, boats, RVs, or other desired locations.

Figure 2: Key Features - MC4 Cables, Grommets, and IP67 Waterproofing
The panel includes MC4 connectors for universal compatibility, reinforced grommets for secure attachment, and an IP67 rated junction box for environmental protection.

Figure 3: Maxeon Solar Cell Construction
Maxeon cells feature a photophilic laminate for enhanced light absorption, ultra-pure silicon for optimal power conversion, and a solid copper foundation for durability.
3. Safety Information
- Severe Electrical Hazard: Solar modules generate electricity when exposed to light. Always treat the panel as a live electrical component.
- Qualified Installation: Installation should only be performed by a qualified technician to prevent electrical shock or damage to the product.
- Handling: Avoid dropping, bending excessively, or placing heavy objects on the solar panel.
- Wiring: Ensure all wiring connections are secure and correctly polarized. Refer to local electrical codes for proper grounding and wiring practices.
- Environmental Conditions: Do not immerse the panel in water. While weather-resistant, extreme conditions may require additional protection.
4. Installation
- Unpack the Panel: Carefully remove the solar panel from its packaging. Inspect for any visible damage.
- Choose a Location: Select a location that receives maximum direct sunlight throughout the day. Consider the panel's flexibility for curved surfaces.
- Mounting: Use the pre-drilled holes on the panel to securely mount it to your desired surface (e.g., RV roof, boat deck). Ensure the mounting is robust enough to withstand environmental factors like wind.
- Connect MC4 Cables: Connect the MC4 connectors from the solar panel to your solar charge controller or compatible solar generator. Ensure correct polarity (positive to positive, negative to negative).
- System Integration: Integrate the solar panel with your existing solar charging system, ensuring all components (charge controller, battery, inverter) are compatible and correctly connected.

Figure 4: Example Installation on a Vehicle
The flexible design allows for installation on various surfaces, such as vehicle hoods or roofs, for mobile power generation.
5. Operation
Once installed and connected, the ExpertPower 100W Flexible Solar Panel will begin generating electricity when exposed to sunlight. The power generated will be regulated by your solar charge controller before being stored in a battery or used directly by connected devices.
- Sunlight Exposure: Ensure the panel is positioned to receive maximum direct sunlight. Shading, even partial, can significantly reduce power output.
- Monitoring: If your system includes a charge controller with a display, monitor the charging status and battery voltage regularly.
- Angle Adjustment: For stationary setups, adjusting the panel's angle seasonally can optimize power generation.
6. Maintenance
- Cleaning: Regularly clean the surface of the solar panel with a soft, damp cloth to remove dust, dirt, and debris. Avoid abrasive cleaners or harsh chemicals.
- Inspection: Periodically inspect the panel for any physical damage, such as cracks, delamination, or loose connections. Check the MC4 connectors for corrosion or wear.
- Shading: Ensure no new obstructions are casting shadows on the panel. Trim nearby foliage if necessary.
- Junction Box: Verify the Micro Junction box remains securely sealed and free from moisture ingress.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power output | No sunlight; Panel shaded; Loose connections; Faulty charge controller/battery | Move panel to direct sunlight; Remove shading; Check all cable connections; Test charge controller/battery. |
| Low power output | Partial shading; Dirty panel surface; Incorrect panel angle; Overcast weather | Remove shading; Clean panel surface; Adjust panel angle for optimal sun exposure; Output is naturally lower in overcast conditions. |
| Panel not charging battery | Charge controller issue; Battery fully charged; Incorrect wiring polarity | Check charge controller status; Verify battery is not already full; Recheck wiring polarity. |
8. Technical Specifications

Figure 5: Panel Dimensions and Specification Label
The product label provides detailed electrical characteristics and safety warnings. The model shown on the label is SPR-E-Flex-100.
| Specification | Value |
|---|---|
| Model | Q16SPSFL100 |
| Rated Power (Pmax) | 100 W (+/-3%) |
| Voltage (Vmp) | 17.5 V |
| Current (Imp) | 5.80 A |
| Open-Circuit Voltage (Voc) | 21.0 V |
| Short-Circuit Current (Isc) | 6.20 A |
| Maximum Series Fuse | 15 A |
| Product Dimensions (L x W x H) | 45.9" x 21.9" x 0.8" (1165mm x 556mm x 20mm) |
| Item Weight | Approx. 4.4 lbs (2 kg) |
| Material | Monocrystalline Silicon |
| Efficiency | 22-25% (Maxeon cells) |
| Protection Rating | IP67 (Junction Box) |
Note: Standard Test Conditions: 1000 W/m², AM 1.5, 25°C. Suitable for ungrounded, positive, or negative grounded DC systems. Field Wiring: Cu wiring only, min. 12 AWG/4 mm², insulated for 90°C min.
Patent information: Patented as shown at www.sunpower.com/patents (Reference: 524085)
9. Warranty and Support
ExpertPower provides a 1-year warranty for this product, covering defects in materials and workmanship under normal use. For warranty claims or technical assistance, please contact ExpertPower customer service.
Our dedicated customer service team is available to assist you with any questions or concerns regarding your solar panel.
For more information about ExpertPower and our products, visit our official store: ExpertPower Store on Amazon.





