{"title":"21700 Battery Spacers","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e21700 battery spacers are holders that keep cells aligned and evenly spaced when you build a pack.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eCell layout matters in a multi-cell build, and spacers are what lock it in. They align cells for clean welds, hold even gaps between them so air can move and heat can escape, and give the pack mechanical structure that stands up to handling and vibration. That recommended gap between cells isn't arbitrary — spacers make it consistent every time.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eMade for 21700 cells, they're a go-to supply for building organized, stable packs in series and parallel.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eKey features\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eKeeps 21700 cells aligned\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHolds even spacing for airflow and cooling\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAdds structure and stability to the pack\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eMakes layout clean and repeatable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBuilt for\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAligning cells during assembly\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSpacing cells for heat dissipation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStructuring series and parallel packs\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCustom and DIY 21700 builds\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"2p-battery-spacer-for-21700-cells-21-7mm","title":"2P Battery Spacer for 21700 Cells 21.7mm","description":"\u003cp\u003eStreamline your battery building projects with this \u003cstrong\u003e2P Battery Spacer for 21700 Cells – 21.7mm\u003c\/strong\u003e, engineered for precise alignment and secure fitment. Designed specifically for DIY battery pack assemblies, this durable plastic spacer is compatible with most \u003cstrong\u003eChina-manufactured 21700 lithium-ion cells\u003c\/strong\u003e, including popular \u003cstrong\u003eLishen\u003c\/strong\u003e models.\u003c\/p\u003e\r\n\r\n\u003cp\u003eWith a 21.7mm diameter, this spacer is a reliable choice for all Lishen models except the LR2170LA (which requires 21.2mm). Perfect for creating stable and well-ventilated \u003cstrong\u003e2-parallel cell arrangements\u003c\/strong\u003e in electric bikes, power tools, solar energy storage, and more.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003ePrecise 21.7mm Fit:\u003c\/strong\u003e Ideal for most Lishen and Chinese-made 21700 cells (excluding LR2170LA)\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eDurable Build:\u003c\/strong\u003e Crafted from high-strength plastic for stability, safety, and long-term use\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eEfficient Cell Spacing:\u003c\/strong\u003e Supports airflow and thermal management in battery assemblies\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Perfect for DIY battery packs, EV modules, and portable energy systems\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003e2-Cell Configuration:\u003c\/strong\u003e Designed to hold two 21700 cells in parallel securely and evenly\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003eBuild smarter with this dependable \u003cstrong\u003e2P 21700 battery holder spacer\u003c\/strong\u003e—your go-to solution for reliable cell alignment and modular battery construction.\u003c\/p\u003e\r\n","brand":"18650Battery.com","offers":[{"title":"Default Title","offer_id":52207906259254,"sku":"SPACER-217002PB","price":0.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/2761\/1190\/files\/SPACER-217002PB.jpg?v=1773255007"},{"product_id":"2p-battery-spacer-for-21700-cells-21mm","title":"2P Battery Spacer for 21700 Cells 21mm","description":"\u003cp\u003eStreamline your battery pack assembly with the \u003cstrong\u003e2P Battery Spacer for 21700 Cells – 21.2mm\u003c\/strong\u003e, designed to securely hold two 21700 lithium-ion cells in parallel. This high-precision spacer is ideal for use with \u003cstrong\u003eSamsung, LG, Murata, and other 21.2mm diameter 21700 batteries\u003c\/strong\u003e, offering optimal alignment, stability, and airflow for your custom battery builds.\u003c\/p\u003e\r\n\r\n\u003cp\u003ePerfect for both DIY enthusiasts and professionals, this dual-cell spacer simplifies the creation of efficient and organized \u003cstrong\u003eLi-ion battery packs\u003c\/strong\u003e for applications including \u003cstrong\u003ee-bikes, power tools, solar storage systems, and portable electronics\u003c\/strong\u003e.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Fit for 21.2mm 21700 Cells:\u003c\/strong\u003e Compatible with Samsung, LG, Murata, and similar brands\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003e2-Cell Parallel Configuration:\u003c\/strong\u003e Keeps two cells securely aligned in parallel for neat and safe builds\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Cooling and Safety:\u003c\/strong\u003e Promotes airflow between cells to reduce heat buildup during use\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eDurable Lightweight Material:\u003c\/strong\u003e Made from impact-resistant plastic for long-lasting performance\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Suitable for assembling battery packs for EVs, scooters, RC hobby projects, and more\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003eBuild with confidence using this \u003cstrong\u003e2P 21700 lithium battery holder spacer\u003c\/strong\u003e, a must-have accessory for anyone working with custom battery solutions or energy storage systems.\u003c\/p\u003e\r\n","brand":"18650Battery.com","offers":[{"title":"Default Title","offer_id":52207906390326,"sku":"SPACER-217002PS","price":0.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/2761\/1190\/files\/SPACER-217002PS.jpg?v=1773255012"},{"product_id":"3p-battery-spacer-for-21700-cells-21-7mm","title":"3P Battery Spacer for 21700 Cells 21.7mm","description":"\u003cp\u003eOptimize your battery pack construction with this \u003cstrong\u003e3P Battery Spacer for 21700 Cells – 21.7mm\u003c\/strong\u003e. Designed for precision alignment and secure cell spacing, this high-quality plastic spacer is ideal for DIY battery builders, EV pack designers, and energy storage enthusiasts working with \u003cstrong\u003e21700 lithium-ion cells\u003c\/strong\u003e.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThis \u003cstrong\u003e3-cell parallel spacer\u003c\/strong\u003e is specifically sized at \u003cstrong\u003e21.7mm\u003c\/strong\u003e, making it a perfect fit for most China-manufactured cells, including models from trusted brands like \u003cstrong\u003eLishen\u003c\/strong\u003e. While Lishen’s LR2170LA uses 21.2mm spacing, all other Lishen models are fully compatible with this 21.7mm version.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003ePerfect Fit for 21700 Cells:\u003c\/strong\u003e Sized for 21.7mm diameter cells – ideal for Lishen and similar batteries\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eSturdy \u0026amp; Durable:\u003c\/strong\u003e Made from heat-resistant, impact-tolerant plastic for safe and stable cell alignment\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eEfficient Cell Management:\u003c\/strong\u003e Helps maintain proper spacing and airflow to prevent overheating\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eIdeal for DIY Builds:\u003c\/strong\u003e Great for assembling 3P battery modules for e-bikes, powerwalls, and custom battery packs\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eReliable Compatibility:\u003c\/strong\u003e Supports a wide range of 21700 lithium-ion cells from Chinese manufacturers\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003eWhether you're building a large battery pack or replacing an existing cell array, this \u003cstrong\u003e3P 21700 battery holder spacer\u003c\/strong\u003e offers dependable spacing for better structure, ventilation, and safety.\u003c\/p\u003e\r\n","brand":"18650Battery.com","offers":[{"title":"Default Title","offer_id":52207906521398,"sku":"SPACER-217003PB","price":0.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/2761\/1190\/files\/SPACER-217003PB.jpg?v=1773255016"},{"product_id":"3p-battery-spacer-for-21700-cells-21-2mm","title":"3P Battery Spacer for 21700 Cells 21.2mm","description":"\u003cp\u003eOptimize your custom battery builds with the \u003cstrong\u003e3P Battery Spacer for 21700 Cells – 21.2mm\u003c\/strong\u003e, engineered for precision alignment, enhanced safety, and efficient heat dissipation. Designed to fit most \u003cstrong\u003eSamsung, LG, and Murata 21700 lithium-ion cells\u003c\/strong\u003e, this high-quality spacer is perfect for creating reliable and organized battery packs.\u003c\/p\u003e\r\n\r\n\u003cp\u003eFeaturing a 21.2mm inner diameter, this triple-cell configuration spacer securely holds three 21700 cells in parallel, making it ideal for \u003cstrong\u003eDIY battery builders, electric vehicle projects, e-bike packs, power storage systems\u003c\/strong\u003e, and more.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003ePerfect Fit for 21.2mm Cells:\u003c\/strong\u003e Tailored for Samsung, LG, Murata, and other similarly sized 21700 lithium-ion batteries\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eTriple-Cell (3P) Design:\u003c\/strong\u003e Holds 3 cells in parallel for neat, compact, and scalable battery pack layouts\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eImproved Airflow \u0026amp; Heat Management:\u003c\/strong\u003e Ensures adequate spacing for better cooling and overall battery safety\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eDurable \u0026amp; Lightweight:\u003c\/strong\u003e Made from sturdy plastic for reliable, vibration-resistant performance\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eIdeal for DIY \u0026amp; Professional Use:\u003c\/strong\u003e Great for battery pack assembly in solar, robotics, electric bikes, and more\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003eWhether you're building high-capacity battery packs or experimenting with energy storage, this \u003cstrong\u003e3P 21700 battery holder spacer\u003c\/strong\u003e offers the precision and compatibility you need for safe and professional-grade results.\u003c\/p\u003e\r\n","brand":"18650Battery.com","offers":[{"title":"Default Title","offer_id":52207906718006,"sku":"SPACER-217003PS","price":0.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/2761\/1190\/files\/SPACER-217003PS.jpg?v=1773255021"}],"url":"https:\/\/18650battery.com\/collections\/21700-battery-spacers.oembed","provider":"18650Battery","version":"1.0","type":"link"}