{"product_id":"mppt-solar-charger-control-board-dc5-18v-18650-lithium-battery","title":"MPPT Solar Charger Board DC5-18V 2.5A for 18650 Battery","description":"\n\u003ch2\u003eMPPT Solar Charger Control Board — DC5–18V, 2.5A, Type-C \u0026amp; USB Output\u003c\/h2\u003e\n\u003cp\u003ePower your DIY projects and off-grid setups with this compact \u003cstrong\u003eMPPT Solar Charging Management Module\u003c\/strong\u003e. Designed for 3.7V 18650 ternary lithium batteries, this versatile PCB board accepts input from a 5–18V solar panel, DC 5.5×2.1mm port, or Type-C connector — giving you the flexibility to charge from virtually any available power source. A stable 5V\/2.1A USB output keeps your smartphones, tablets, and portable electronics topped up wherever you are.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Multi-Input Support:\u003c\/strong\u003e Compatible with 5–18V \/ 10–30W solar panels, DC 5.5×2.1mm, and Type-C inputs (one port at a time). Easily adapt to the most convenient power source for any scenario.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReliable Circuit Protection:\u003c\/strong\u003e Built-in anti-reverse connection and anti-backflow components plus insulated plastic protection on all interfaces — minimises risk of short circuits or component damage from incorrect wiring, extending module lifespan.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStable 5V \/ 2.1A USB Output:\u003c\/strong\u003e High-precision voltage-stabilising capacitors deliver consistent power output suitable for fast-charging most smartphones and portable digital devices.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Segment LED Battery Indicator:\u003c\/strong\u003e Clear, real-time battery level display with a light-transmitting plastic cover so you can monitor remaining charge at a glance — no extra tools needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Durable Build:\u003c\/strong\u003e Rigid PCB with scratch-resistant plastic edge protection. Measuring just 70 × 34 mm and lightweight, it fits neatly into small DIY power banks, outdoor solar systems, and portable power projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolar Battery Charging Controller Module\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 5–18V (Solar Panel 10–30W)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Current (Max)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 5V \/ 2.1A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Battery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.7V 18650 Ternary Lithium Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolar Terminal, DC 5.5×2.1mm, Type-C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e70 mm × 34 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlame-retardant plastic, PCB, electronic components\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGreen main board, blue terminal blocks, silver\/black interfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY portable power bank assembly\u003c\/li\u003e\n  \u003cli\u003eSmall off-grid and outdoor solar power systems\u003c\/li\u003e\n  \u003cli\u003e3.7V 18650 lithium battery charging projects\u003c\/li\u003e\n  \u003cli\u003eMaker and electronics hobbyist builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotos are for illustrative purposes; please refer to the specifications above for exact dimensions.\u003c\/li\u003e\n  \u003cli\u003eMinor measurement differences may occur due to manual measurement.\u003c\/li\u003e\n  \u003cli\u003eActual colours may vary slightly depending on your monitor settings.\u003c\/li\u003e\n  \u003cli\u003eOnly one input port should be connected at a time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003e1PC 10g High Grade Silicon Grease Lubricant for O-Rings \u0026amp; Components\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-large-capacity-battery-storage-organizer-box-batteries-not-included-vintage-beer-crate-appearance-holds-30-aaa-batteries\"\u003e1PC Large Capacity Battery Storage Organizer Box — Holds 30 AAA Batteries\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-mobile-data-cable-storage-box-portable-winding-earphone-charger-storage-box-with-lid-drawer-organizer-box\"\u003e1PC Mobile Data Cable \u0026amp; Charger Storage Box with Lid\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What battery type is this MPPT solar charger module compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This solar charger control board is specifically designed for \u003cstrong\u003e3.7V 18650 ternary lithium batteries\u003c\/strong\u003e. It manages the full charge cycle — including MPPT optimisation from the solar panel — to keep your 18650 cells charged safely and efficiently.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I connect the solar panel and Type-C input at the same time?\u003c\/h4\u003e\n\u003cp\u003eA: No — only one input port should be connected at any given time. You may choose between the solar panel terminal, the DC 5.5×2.1mm port, or the Type-C port based on the power source available to you, but simultaneous multi-input connection is not supported.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What can I power with the 5V USB output on this module?\u003c\/h4\u003e\n\u003cp\u003eA: The USB output provides a stable \u003cstrong\u003e5V \/ 2.1A\u003c\/strong\u003e supply, which is suitable for charging most smartphones, portable Bluetooth speakers, small fans, and other USB-powered devices commonly used in off-grid or outdoor setups.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum solar panel wattage I can use with this board?\u003c\/h4\u003e\n\u003cp\u003eA: The module supports solar panels rated between \u003cstrong\u003e10W and 30W\u003c\/strong\u003e with an input voltage range of \u003cstrong\u003e5V to 18V\u003c\/strong\u003e and a maximum input current of 2.5A. Using a panel within these parameters will ensure optimal performance and protect the module's circuitry.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What battery type is this MPPT solar charger module compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This solar charger control board is specifically designed for 3.7V 18650 ternary lithium batteries. It manages the full charge cycle — including MPPT optimisation from the solar panel — to keep your 18650 cells charged safely and efficiently.\"}}, {\"@type\": \"Question\", \"name\": \"Can I connect the solar panel and Type-C input at the same time?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — only one input port should be connected at any given time. 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