{"product_id":"20w-12v-solar-battery-trickle-charger-maintainer-mppt-controller","title":"20W 12V Solar Battery Trickle Charger Maintainer with MPPT","description":"\n\u003ch2\u003e20W 12V Solar Battery Trickle Charger \u0026amp; Maintainer with Built-In MPPT Controller\u003c\/h2\u003e\n\u003cp\u003eKeep your 12V batteries topped up and ready with this high-efficiency \u003cstrong\u003e20W solar battery trickle charger and maintainer\u003c\/strong\u003e. Powered entirely by sunlight, it delivers steady, reliable charging for cars, boats, RVs, trailers, lawn mowers, and more — no outlet required. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose This Solar Charger?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency Monocrystalline Cells:\u003c\/strong\u003e Premium monocrystalline silicon solar cells paired with durable tempered glass deliver superior energy conversion and faster battery replenishment compared to standard polycrystalline panels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Intelligent MPPT Controller:\u003c\/strong\u003e The integrated Maximum Power Point Tracking (MPPT) controller continuously optimizes energy harvest from the sun while providing multi-layer protection — overvoltage, overcurrent, short-circuit, over-discharge, overcharge, and overheating safeguards all built in.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Battery Compatibility:\u003c\/strong\u003e Works seamlessly with LiFePO4, lithium-ion, AGM, gel, SLA, and EFB 12V batteries — perfect for cars, boats, RVs, trailers, lawn mowers, water pumps, gate openers, electric fences, tool sheds, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP65 Weatherproof Design:\u003c\/strong\u003e Engineered to handle wind, rain, snow, and intense sunlight. Operates reliably in extreme temperatures ranging from −40°F to 185°F, making it ideal for year-round outdoor use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Mounting Bracket Included:\u003c\/strong\u003e The 0°–60° adjustable bracket, M6 screws, and pre-drilled holes allow for secure, long-term installation on walls, boat decks, car roofs, house rooftops, and more — mount it exactly where sunlight is optimal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Plug-and-Charge Setup:\u003c\/strong\u003e Comes with a 122-inch (≈10 ft) extension cord and 43.3-inch alligator clips, so you can connect directly to your 12V battery quickly and conveniently without extra tools.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets CE certification standards for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; font-size:14px;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaximum Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e20W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCompatible Battery Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSolar Cell Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMonocrystalline Silicon\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eController\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBuilt-in MPPT\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWaterproof Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e−40°F to 185°F\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eExtension Cord\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e122 inches (~10 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eAlligator Clips Cable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e43.3 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBracket Angle Adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0° – 60°\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 20W 12V Monocrystalline Solar Panel\u003c\/li\u003e\n  \u003cli\u003e1 × Built-in MPPT Controller\u003c\/li\u003e\n  \u003cli\u003e1 × Adjustable Mounting Bracket (0°–60°, with M6 screws)\u003c\/li\u003e\n  \u003cli\u003e1 × 122-inch Extension Cord\u003c\/li\u003e\n  \u003cli\u003e1 × 43.3-inch Alligator Clip Cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on solar energy technologies and best practices, visit the \u003ca href=\"https:\/\/www.energy.gov\/eere\/solar\/solar-energy-technologies-office\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Department of Energy – Solar Energy Technologies Office\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of 12V batteries is this solar trickle charger compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This 20W solar battery maintainer is designed to work with a wide range of 12V battery types, including LiFePO4, lithium-ion, AGM, gel, SLA, and EFB batteries. It is suitable for cars, boats, RVs, trailers, lawn mowers, water pumps, electric fences, gate openers, and tool sheds.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does the MPPT controller do, and why does it matter?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in MPPT (Maximum Power Point Tracking) controller constantly monitors and optimizes the power output from the solar panel to ensure your battery charges as efficiently as possible. It also provides multi-layer protection against overvoltage, overcurrent, short-circuit, over-discharge, overcharge, and overheating — keeping both your battery and solar system safe.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this solar charger be used outdoors in all weather conditions?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The charger features IP65 weatherproof protection and is built to withstand wind, rain, snow, and direct sunlight. It operates reliably in temperatures ranging from −40°F to 185°F, making it ideal for year-round outdoor installation on boat decks, car roofs, house rooftops, or walls.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I install the adjustable mounting bracket?\u003c\/h4\u003e\n\u003cp\u003eA: The included adjustable bracket supports a tilt angle of 0° to 60°, allowing you to aim the panel directly at the sun for maximum energy capture. Use the included M6 screws and the panel's pre-drilled holes to mount it securely on any flat surface such as a wall, roof, or boat deck.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long is the cable included with this solar charger?\u003c\/h4\u003e\n\u003cp\u003eA: The kit includes a 122-inch (approximately 10-foot) extension cord and a 43.3-inch alligator clip cable, providing plenty of reach to connect the solar panel to your battery without needing extra extension cables in most standard setups.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of 12V batteries is this solar trickle charger compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This 20W solar battery maintainer is designed to work with a wide range of 12V battery types, including LiFePO4, lithium-ion, AGM, gel, SLA, and EFB batteries. 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