SQT-10W/20AH Portable BC Solar Charger
Product Overview
The 10W 5V BC (Back Contact) Solar Charging System is an efficient off-grid power solution designed for portable energy storage and outdoor emergency scenarios. The core product adopts cutting-edge BC back-contact solar modules, integrating both positive and negative electrodes entirely on the back of the cell, achieving an ultimate optical design with “no gridline shadowing” on the front, maximizing light absorption area. The system comes standard with a 20000mAh high-capacity energy storage battery, fully charged in 5-7 hours of adequate sunlight. Whether powering smartphones, digital cameras, GPS navigation, walkie-talkies, or outdoor lighting equipment, this kit provides stable, clean 5V DC output — your ideal choice for outdoor adventures, disaster relief, and daily emergency backup power.
Technical Specifications
| Parameter | Detailed Specification |
|---|---|
| Solar Module | 10W BC Back-Contact Monocrystalline Solar Panel |
| Open Circuit Voltage (Voc) | 5.85V |
| Operating Voltage (Vmp) | 5V |
| Max Operating Current (Imp) | 2000mA (2A) |
| Power Tolerance | ±5% |
| Built-in Battery Capacity | 20000mAh (Lithium Battery) |
| Charging Time | Approx. 5-7 hours (under direct strong sunlight) |
| Output Interface | USB Regulated Output (5V/2A) |
| Unfolded Size | Approx. 250 x 370 x 10 mm |
| Folded Size | Approx. 185 x 250 x 5 mm |
| Net Weight | Approx. 0.38kg |
| Encapsulation Material | High Light Transmittance PET/EVA + Corrosion-Resistant Canvas/Nylon |
| Protection Rating | High Waterproof & Dustproof Design |
| Standard Accessories | 10W BC Solar Folding Pack, Multi-function Phone Charging Adapter (1-to-10), USB Cable, User Manual |
Core Advantages
Frameless Front, Ultimate Power Generation Efficiency
Adopting BC back-contact technology, the front completely eliminates traditional metal gridlines, allowing light to reach the silicon wafer without any obstruction. Compared to traditional modules, the effective light-receiving area is larger, providing more stable power output at the same size.
Excellent Low-Light & Anti-Shading Performance
BC modules maintain outstanding power generation performance in complex environments such as early morning, evening, or partial shadow shading. Actual test data shows that under partial shading, its power retention rate is significantly better than conventional modules, reducing the impact of shadows on system power generation.
20000mAh Ultra-Large Storage, Worry-Free Endurance
Built-in 20,000mAh high-capacity battery completely solves the pain point of solar power being “at the mercy of weather.” Efficiently stores energy during the day and releases it at night or on rainy days, meeting the continuous charging needs of multiple devices.
Ultra-Lightweight & Portable Folding Design
The product adopts flexible or semi-rigid encapsulation, folding to a compact size with only about 0.38kg weight. Paired with water-repellent and corrosion-resistant canvas/nylon material, it easily fits into a backpack — lightweight gear for outdoor enthusiasts.
Safe & Durable, All-Scenario Compatibility
The rear electrodes are insulated to avoid short-circuit risks from long-term exposure of metal gridlines. Combined with high-transmittance EVA/PET encapsulation, it is heat-resistant and anti-aging, ensuring long-term reliability in harsh outdoor environments.
Application Scenarios
- Outdoor Adventure & Camping: Provides continuous green power for phones, cameras, drones, headlamps, camp lights, and other electronic devices, saying goodbye to battery anxiety.
- Emergency Relief & Disaster Preparedness: Serves as an emergency communication and lighting lifeline for families or individuals when natural disasters such as earthquakes and typhoons cause grid failure.
- Field Work & Exploration: Meets the continuous power needs of GPS, walkie-talkies, and portable instruments in power-free environments such as geological exploration, military exercises, and forestry patrols.
- RV & Yacht Living: As a vehicle or boat auxiliary power source, charging small appliances to enhance travel quality of life.
- Daily Commute & Eco-Friendly Travel: Place on a balcony or windowsill to charge personal digital devices during fragmented time, practicing a low-carbon lifestyle.
Frequently Asked Questions (FAQ)
A: The front of the BC module has no metal gridlines and is covered with an anti-reflective film at factory to improve light transmittance. This film may have a slight greasy feel or pressing marks when first unpacked, which is normal and will disappear with light exposure and time. Please handle with care during installation. Directly stepping on the module surface is strictly prohibited. It is recommended to fix it using standard methods such as pressure blocks.
A: Under ideal strong sunlight, the 10W panel outputs at 2A current, and theoretically can fully charge the 20000mAh battery in about 5-7 hours. Actual charging time will be affected by light intensity, angle of incidence, and ambient temperature. It is recommended to place the panel as perpendicular to sunlight as possible for optimal charging efficiency.
A: This product supports dual-mode operation. On sunny days, you can use the solar panel to directly charge USB devices such as phones (direct charging mode); in poor light or at night, you can power devices through the built-in 20000mAh battery (energy storage mode).
A: The product surface is encapsulated with corrosion-resistant nylon/canvas and high-transmittance EVA/PET materials, providing high waterproof and dustproof performance, capable of withstanding daily rain splashes and dust. However, to ensure electronic interface safety and extend service life, it is not recommended to leave it exposed outdoors during heavy rain. Please cap the charging interface with the waterproof plug when not in use.
A: The standard multi-function adapter kit includes mainstream charging interfaces on the market (such as Type-C, Micro-USB, Lightning, DC round port, etc.), widely compatible with smartphones, digital cameras, MP3/MP4, portable walkie-talkies, and various outdoor lighting fixtures, truly achieving “one pack for multiple uses.”
