Best USB Solar Charger, Monocrystalline 30W Solar Panel Trickle Charger with Controller, Waterproofing for Car Boat RV for Various Devices, Fast Charging and Efficient

1. High Efficiency: Our solar panel features monocrystalline cells. A higher photoelectric conversion efficiency, reaching about 20%-25% under standard testing conditions. Compared to other polycrystalline and amorphous solar panels of the same size, our monocrystalline solar panel charges fast. 2. Battery Savior: Trickle charging is a slow charging method. When the charged battery is low, the charger initially provides a high current for fast charging. As the battery approaches full charge, the charger automatically switches to trickle charge mode. The charger delivers a smaller, steady current to replenish the power lost due to self discharge, keeping the battery fully charged and preventing damage from overcharging. Specification: Item Type: 30W Solar Panel Material: PET, EVA, TPT Solar Panel Material: High Efficiency Monocrystalline Silicon Product Size: Approx. 320x275x2mm / Approx. 12.6x10.8x0.08in Solar Panel Power: 30W Output Ports: 1 x USB, 2 x DC Features: 1. Suitable for various devices such as phones, power banks, rechargeable battery, energy storage devices, etc. 2. Built in stabilizing circuit in USB circuit box for fast charging at high current. 3. Equipped with 5A solar controller for stable and efficient charging. 4. Battery charging status indicator, red charging, green fully charged 5. Connect multiple solar panels together through the DC5521 port on USB circuit box for parallel increase in output power. 6. Flexible panel can be slightly bent for installation on more surfaces, USB circuit box is heatproof, rustproof, longer service life. How to Use: Remove the product from packaging and it is ready to use. Package List: 1 x Solar Panel 1 x Controller 4 x Supply Cords 4 x Suction Cups 1 x Instruction Manual

• High Efficiency: Our solar panel features monocrystalline cells. A higher photoelectric conversion efficiency, reaching about 20%-25% under standard testing conditions. Compared to other polycrystalline and amorphous solar panels of the same size, our monocrystalline solar panel charges fast.
• Battery Savior: Trickle charging is a slow charging method. When the charged battery is low, the charger initially provides a high current for fast charging. As the battery approaches full charge, the charger automatically switches to trickle charge mode. The charger delivers a smaller, steady current to replenish the power lost due to self discharge, keeping the battery fully charged and preventing damage from overcharging.
• Compatibility: Use it to charge and maintain infrequently used vehicles, boats, outdoor electronics, mowers, and more. Ensure your devices start anytime and protect batteries from long term discharge. It's also ideal for off grid devices like electric fences, gate openers, water pumps, weather system, cameras etc. Compatible with most battery likes lithium, GEL, AGM, flooded etc.
• IP67 Water Proof: The 30W portable solar panel has an IP67 water proof and dust proof rating, specifically designed for outdoor use, able to withstand various harsh weather conditions.
• Charging: The solar panel includes a built in controller that prevents overcharging. When the battery is full, the controller stops charging automatically and resumes when the voltage drops. Our solar panel system won't drain your battery. Included suction cups for quick installation, and all cables are plug and play.