SQT-20W/15AH Low-Power Solar Power System
Product Overview
Are you looking for a reliable power source for outdoor surveillance cameras, weather monitoring stations, IoT sensors, or small electronic devices in remote areas? The SQT-20W/15AH Low-Power Solar Power System is specifically designed to solve power challenges in off-grid environments. This all-in-one integrated unit combines a high-efficiency monocrystalline silicon solar panel with a large-capacity LiFePO4 battery — no wiring required, plug and play, providing all-weather, uninterrupted green energy for your outdoor equipment.
Whether it’s forest fire monitoring, hydrological monitoring, smart agriculture IoT, traffic violation capture, or border patrol cameras, it serves as the most reliable "perpetual" heart. The system adopts MPPT intelligent charging technology with up to 99% photoelectric conversion efficiency, maximizing energy capture even on cloudy days. The industrial-grade LiFePO4 battery pack offers 2000+ cycle life, IP65 fully sealed protection, and withstands sandstorms, heavy rain, extreme heat, and freezing cold — truly "install once, worry-free for ten years."
Core Advantages
High Efficiency, Works on Cloudy Days
Adopts MPPT intelligent charging algorithm with up to 99% photoelectric conversion efficiency. Even under insufficient sunlight on cloudy days, it maximizes energy capture for continuous operation. Compared to traditional PWM controllers, charging efficiency is improved by over 30%.
Industrial-Grade LiFePO4 Battery, Ultra-Long Life
Built-in 15Ah LiFePO4 (Lithium Iron Phosphate) battery pack with 2000+ cycle life. Compared to traditional lead-acid batteries, it is smaller, lighter, and offers excellent high/low temperature performance, operating stably from -20°C to +60°C.
IP65 Rated, Built for Harsh Environments
Fully sealed all-in-one design with a high-strength engineering plastic housing. Waterproof, dustproof, and corrosion-resistant. Suitable for humid rainforests, sandy deserts, and high-salinity coastal areas — worry-free for long-term outdoor deployment.
Wide Compatibility, Plug & Play
Standard DC 12V output interface, compatible with mainstream brands like Hikvision, Dahua, and Uniview. Supports 4G/5G transmission modules and various IoT sensor devices. Installation takes just 10-15 minutes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SQT-20W/15AH |
| Rated Voltage | 12V DC |
| Solar Power | 20W (A+ Monocrystalline Silicon) |
| Solar Panel Efficiency | ≥21% |
| Battery Capacity | 15Ah LiFePO4 (Customizable) |
| Battery Cycle Life | ≥2000 Cycles |
| Operating Temperature | -20°C ~ +60°C |
| Protection Rating | IP65 |
| Standby Power | < 5mA |
| Charging Controller | MPPT Intelligent Charging |
| Output Interface | DC 12V Standard Interface |
| Installation | Bracket / Wall-Mounted |
| Design Life | 10+ Years |
Note: Specifications are for reference only. Some parameters can be customized according to customer requirements.
Technical Details
Intelligent BMS Battery Management System
Built-in industrial-grade BMS (Battery Management System) provides comprehensive protection for the battery:
- Overcharge Protection: Automatically cuts off the charging circuit when battery voltage reaches the upper limit, preventing overcharge swelling or fire.
- Over-discharge Protection: Automatically disconnects the load when battery voltage drops below the safe threshold, preventing deep discharge damage.
- Short Circuit / Reverse Polarity Protection: Cuts off in milliseconds on short circuit or reverse polarity connection, protecting equipment and wiring.
- Over-Temperature Auto Cut-off: Built-in temperature sensor automatically derates or cuts off when battery temperature exceeds safe range.
- Cell Balancing: Automatically balances voltage across individual cells to extend overall battery pack life.
A+ Grade Monocrystalline Silicon Solar Panel
Uses A+ grade monocrystalline silicon solar cells with up to 21% conversion efficiency. The surface is covered with high-strength low-iron tempered glass for minimal transmittance degradation. The panel uses lamination encapsulation technology with excellent PID (Potential Induced Degradation) resistance, ensuring stable power generation for over 10 years throughout its lifecycle.
Minimalist Installation Design
No trench digging or grid connection permits needed. The unit comes with mounting holes and a fixed bracket — simply connect your device and power on. A regular electrician or DIY user can complete installation in 10-15 minutes. The bracket supports adjustable angles, allowing you to optimize the solar panel tilt based on your local latitude for maximum light absorption.
Application Scenarios
Security Surveillance
Power supply for CCTV in off-grid scenarios such as fish farm monitoring, orchard anti-theft cameras, construction site surveillance, forest fire lookout towers, and remote area security monitoring.
Environmental Monitoring
Long-term power supply for outdoor environmental sensing equipment including hydrological and water quality monitoring stations, meteorological data collection stations, air quality testing stations, and soil moisture monitoring.
Smart Agriculture
Off-grid power for agricultural facilities including greenhouse automation control systems, insect trap lights, smart irrigation valves, and agricultural IoT sensor nodes.
Transportation Infrastructure
Power supply for traffic infrastructure including traffic violation capture cameras, solar traffic signal assistance, wireless data transmission nodes, and highway/railway roadside monitoring equipment.
Why Choose SQT-20W/15AH?
Solar power systems on the market vary widely in quality. Many low-cost products suffer from inflated battery capacity ratings, low charging efficiency, and substandard protection ratings, leading to frequent failures shortly after outdoor deployment — with maintenance costs far exceeding expectations. The SQT-20W/15AH system maintains strict quality control from the design stage:
- Real Capacity, No Inflation: The 15Ah battery capacity is based on actual measured ratings, ensuring you can accurately calculate runtime when designing your load.
- MPPT Outperforms PWM: At the same power rating, MPPT charge controllers generate 20%-30% more power than traditional PWM controllers, with even greater advantages on cloudy days and during low-light conditions at dawn and dusk.
- LiFePO4 Outlasts Lead-Acid: Although the initial investment is slightly higher, LiFePO4 batteries have 5x the cycle life of lead-acid batteries, resulting in a lower total cost of ownership.
- Professional After-Sales Support: We offer a 1-year warranty and lifetime technical support. Our team can customize the optimal power and capacity configuration based on your actual load and local climate conditions.
Frequently Asked Questions
We recommend a continuous load of up to 10W to ensure reliable operation during consecutive cloudy days. For intermittent-duty devices (e.g., sensors uploading data once per hour), you can extend to 15W-20W. For higher-power devices (e.g., high-power PTZ cameras), please contact our technical team for a customized configuration.
When fully charged, the system can support low-power devices up to 10W for 3-5 consecutive days. If your local climate experiences extreme conditions with over 5 consecutive rainy days, we recommend contacting us to customize a higher-capacity battery version (e.g., 30Ah, 50Ah) for extended runtime.
No. The unit comes with mounting holes, a fixed bracket, and a detailed manual. A regular electrician or a DIY enthusiast can complete installation in 10-15 minutes. We also provide remote video guidance to ensure a smooth installation process.
There will be some impact, but since this system uses a large-capacity LiFePO4 battery design with ample power reserve, the effect is minimal. We recommend simply wiping the solar panel surface once every quarter with a soft cloth or clean water — maintenance is extremely low. The ETFE-coated panel also features self-cleaning properties, with rainwater washing away most dust.
Absolutely. We provide comprehensive OEM/ODM customization services. We can customize solar panel power (5W-300W), battery capacity (5Ah-200Ah), output voltage (12V/24V/48V), and interface types to create the optimal solar power solution tailored to your needs.
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