20W Solar Battery Charger with Smart PWM Controller – 12V Trickle Charger Kit
The 20W Solar Battery Charger is a reliable and efficient solution for maintaining 12V batteries across various vehicles and equipment. Designed with single-crystal silicon solar panels, it can generate electricity in any weather, making it perfect for cars, RVs, boats, motorcycles, and more. Whether you’re off-grid or on the road, this solar charger ensures your batteries stay powered up and ready to go.
🌞 Efficient Solar Power Generation
Equipped with a 20-watt high-efficiency solar panel, this charger effectively converts sunlight into electric energy. The single-crystal silicon construction provides consistent power generation, even in cloudy conditions. A built-in mounting bracket allows optimal positioning for maximum sunlight exposure, ensuring steady battery maintenance throughout the day.
🔋 Intelligent 3-Stage PWM Charging
The smart PWM charge controller utilizes three charging modes to extend battery life and optimize performance:
- Fast Charging: Quickly restores power to depleted batteries.
- Boost Charging: Increases charging efficiency for faster power replenishment.
- Float Charging: Maintains battery health by preventing overcharging.
This intelligent charging system is powered by an industrial-grade STM 8 microprocessor, delivering 10%-20% more power than conventional controllers while protecting the battery from overcharging and voltage spikes.
🔧 All-Weather Durability and Protection
The 20W Solar Battery Charger is designed for outdoor use, featuring robust construction that withstands various weather conditions. It includes:
- Overcharge Protection: Prevents battery damage from excessive charging.
- Overvoltage Protection: Guards against power surges.
- Short Circuit Protection: Ensures safe and reliable operation.
- Reverse Polarity Protection: Prevents improper connections that could harm the battery.
For added convenience, the PWM controller automatically shuts down at night to conserve energy and resumes charging at sunrise, providing 24/7 battery maintenance without consuming unnecessary power.
💡 LED Indicators for Real-Time Monitoring
The solar charger includes LED indicators that display the battery’s charging status at a glance:
- Yellow/Red Indicator: Charging in progress.
- Green Indicator: Battery fully charged and in float mode.
This visual feedback helps you monitor power levels, so you always know when your battery is ready to go.
⚡ Applications and Compatibility
The 20W Solar Battery Charger is versatile and compatible with a range of 12V battery systems, making it suitable for:
- Cars
- Motorcycles
- RVs and campers
- Boats and marine equipment
- Tractors and lawnmowers
Whether you’re using lead-acid, AGM, or lithium-ion batteries, this solar charger effectively maintains and prolongs battery life, ensuring your equipment is always ready for action.
📦 What’s in the Box?
- 1 × 20W Solar Panel
- 1 × Smart PWM Charge Controller
- 1 × Set of Alligator Clips
- 1 × User Manual
🛠️ Installation and Setup
Setting up the 20W Solar Battery Charger is straightforward:
- 1. Position the solar panel using the mounting bracket to capture optimal sunlight.
- 2. Connect the alligator clips to the battery terminals.
- 3. Monitor the LED indicators to track charging progress.
The lightweight and portable design ensures hassle-free transport and installation, whether you’re at home or on the go.
💬 FAQs
How long does it take to charge a 12V battery using this solar charger?
The charging time depends on the battery capacity and sunlight conditions. On average, a depleted battery may take 6-8 hours to fully charge in direct sunlight.
Can I leave the solar charger connected overnight?
Yes, the PWM controller automatically shuts down at night to prevent power loss and resumes charging when sunlight is detected the next day.
Is this solar charger compatible with lithium batteries?
Yes, it is compatible with 12V lead-acid, AGM, and lithium-ion batteries, making it versatile for various power systems.
Can this charger handle extreme weather conditions?
Yes, the 20W Solar Battery Charger is designed to be weather-resistant, making it suitable for outdoor use in diverse climates.
🚀 Power Up with the 20W Solar Battery Charger
Ensure your 12V batteries stay fully charged and ready for action with the 20W Solar Battery Charger. Whether you’re camping, boating, or simply parked in the driveway, this smart PWM-controlled solar panel kit provides reliable power maintenance, so you’re never left in the dark. Order yours today and enjoy uninterrupted power, anywhere!
