{"product_id":"21700-battery-holder-1-4s-3-35a-diy-pcb-nickel-plated","title":"21700 Battery Holder 1-4S 3-35A DIY PCB Nickel-Plated","description":"\n\u003ch2\u003e21700 Battery Holder – Secure, Reliable PCB Mounting for DIY Power Projects\u003c\/h2\u003e\n\u003cp\u003eThe HUXUAN 21700 Pin-Type Battery Holder is an essential component for electronics enthusiasts, hobbyists, and engineers working on DIY power banks, PCB circuit assemblies, and portable energy storage devices. Designed with a robust pin-type structure for direct PCB soldering, this holder delivers stable, dependable contact every time — supporting 1S to 4S configurations and current ratings from 3A to 35A (Standard and Enhanced variants available).\u003c\/p\u003e\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\u003ePin-Type PCB Welding Design:\u003c\/strong\u003e Pins solder directly to your PCB for a firm, vibration-resistant connection that virtually eliminates the power loss caused by loose battery contacts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal 21700 Compatibility:\u003c\/strong\u003e Fits any brand of 21700 lithium cells — no proprietary sizing restrictions, giving you maximum flexibility in component selection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Current Range (3–35A):\u003c\/strong\u003e Available in Standard and Enhanced ratings, so you can match the holder to your project's exact power demands.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Nickel-Plated Contacts:\u003c\/strong\u003e Nickel plating resists corrosion and oxidation, prolonging contact life and maintaining low resistance over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Plastic Housing:\u003c\/strong\u003e The black plastic body offers excellent insulation, short-circuit protection, and wear resistance — keeping your batteries and circuitry safe.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupports 1S–4S Configurations:\u003c\/strong\u003e Whether you need a single-cell setup or a 4-series arrangement for higher voltage, this holder has you covered.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBattery Holder \u0026amp; Storage Accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Battery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21700 Lithium Cells (all brands)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1S, 2S, 3S, or 4S\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A – 35A (Standard \/ Enhanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic housing, Nickel-plated contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\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\u003eBattery Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePCB Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY power banks and portable chargers\u003c\/li\u003e\n  \u003cli\u003ePCB circuit assembly and prototyping\u003c\/li\u003e\n  \u003cli\u003eEnergy storage and backup power systems\u003c\/li\u003e\n  \u003cli\u003ePortable electronic equipment\u003c\/li\u003e\n  \u003cli\u003eLithium battery power supply systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProduct images are for illustration purposes; please refer to the written specifications for exact dimensions.\u003c\/li\u003e\n  \u003cli\u003eMinor dimensional variations may occur due to manual measurement tolerances.\u003c\/li\u003e\n  \u003cli\u003eScreen color calibration may cause slight differences between displayed and actual product color.\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\/10pcs-wooden-handle-nylon-bristle-paint-brush-for-oil-painting-dusting-and-cleaning-unrechargeable-hand-tool-set-without-batt-2\"\u003e10Pcs Wooden Handle Nylon Bristle Paint Brush – Hand Tool Set\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-precision-japanese-double-edged-hand-saw-sk5-steel-fine-toothed-for-carpentry-and-gardening-6-inch-blade-portable-mini-1\"\u003e1pc Precision Japanese Double-Edged Hand Saw – SK5 Steel, Portable Mini\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-professional-heavy-duty-pruning-shears-with-anti-slip-handle-design-suitable-for-trimming-thick-and-sturdy-branches\"\u003e1pc Professional Heavy-Duty Pruning Shears with Anti-Slip Handle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What battery size is this 21700 battery holder compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This holder is specifically designed for 21700 lithium cells. It is compatible with 21700-size batteries from any brand, giving you the flexibility to use the cells of your choice without compatibility concerns.\u003c\/p\u003e\n\u003ch4\u003eQ: What does 1-4S mean for this battery holder?\u003c\/h4\u003e\n\u003cp\u003eA: \"1-4S\" refers to the series configuration of cells the holder supports. You can mount 1, 2, 3, or 4 cells in series, allowing you to build power supplies at different voltages to suit your specific DIY project or PCB assembly requirements.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the Standard and Enhanced versions?\u003c\/h4\u003e\n\u003cp\u003eA: The Standard version is rated for lower current applications (typically around 3–15A), while the Enhanced version supports higher current loads up to 35A. Choose the Enhanced variant for projects demanding greater power throughput, such as high-drain portable electronics or energy storage systems.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this battery holder include batteries or a PCB?\u003c\/h4\u003e\n\u003cp\u003eA: No — this listing is for the battery holder only. Batteries, PCBs, and chargers are not included and must be sourced separately.\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 size is this 21700 battery holder compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This holder is specifically designed for 21700 lithium cells. It is compatible with 21700-size batteries from any brand, giving you the flexibility to use the cells of your choice without compatibility concerns.\"}}, {\"@type\": \"Question\", \"name\": \"What does 1-4S mean for this battery holder?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"\\\"1-4S\\\" refers to the series configuration of cells the holder supports. 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