{"title":"Battery Cell Spacers","description":"\u003cp\u003eBattery cell spacers are used to align, secure, and organize cylindrical lithium-ion cells during battery pack assembly. This category includes spacers designed for 18650 and 21700 battery sizes.\u003c\/p\u003e\n\n\u003cp\u003eThese spacers are commonly used in DIY and professional battery builds to maintain consistent spacing between cells, improve airflow, and create stable pack structures for spot welding and assembly.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003e\n✔ Precision Fit – Designed for 18650 and 21700 lithium-ion cells\u003cbr\u003e\n✔ Pack Building Support – Helps align cells for spot welding and assembly\u003cbr\u003e\n✔ Consistent Spacing – Maintains uniform distance between cells\u003cbr\u003e\n✔ Modular Design – Available in multiple configurations (2P, 3P, etc.)\n\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cp\u003e\n✔ Battery Pack Assembly – Used to build parallel and series configurations\u003cbr\u003e\n✔ DIY \u0026amp; Custom Projects – Ideal for custom lithium-ion pack builds\u003cbr\u003e\n✔ EV \u0026amp; Energy Systems – Used in larger battery assemblies\u003cbr\u003e\n✔ Prototyping – Helps organize and test battery layouts\n\u003c\/p\u003e\n\n\u003ch3\u003eConfiguration Types\u003c\/h3\u003e\n\u003cp\u003eBattery spacers are available in different layouts such as 2P, 3P, and grid configurations. These allow flexible pack designs depending on your application requirements.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEnsure the spacer matches your battery size and configuration. Some spacers are designed for specific diameters (such as 21.3mm or 21.7mm) depending on the cell manufacturer.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003eBattery spacers provide structural support and alignment only. Proper electrical connections, insulation, and safety measures must be used when building battery packs.\u003c\/p\u003e\n\n\u003cp\u003eBrowse our selection of battery cell spacers to support your battery pack building and assembly needs.\u003c\/p\u003e","products":[{"product_id":"1p-battery-spacer-for-18650-cells","title":"1P Battery Spacer for 18650 Cells","description":"\u003cp\u003eStreamline your battery pack design with the \u003cstrong\u003e1P Battery Spacer for 18650 Cells\u003c\/strong\u003e — an essential component for safely securing individual 18650 lithium-ion batteries. Designed for precision and durability, this lightweight plastic spacer ensures optimal battery alignment and spacing, reducing the risk of short circuits and heat buildup during use.\u003c\/p\u003e\r\n\r\n\u003cp\u003eIdeal for \u003cstrong\u003eDIY battery projects, custom battery packs, electric vehicles, power tools, and solar energy systems\u003c\/strong\u003e, this 1-cell spacer is compatible with standard 18650 cells (18.3mm x 65mm) and supports modular configurations for scalable energy storage solutions.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eSingle Cell Holder:\u003c\/strong\u003e Designed to securely hold one 18650 lithium-ion battery\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eStandard Fit:\u003c\/strong\u003e Compatible with most 18650 cells from brands like Samsung, LG, Sony, and more\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eSafety Enhancing Design:\u003c\/strong\u003e Maintains proper spacing to prevent short circuits and overheating\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eDurable Build:\u003c\/strong\u003e Made from flame-retardant plastic for long-lasting, safe performance\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eExpandable Use:\u003c\/strong\u003e Perfect for building modular and custom battery packs\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003eWhether you're assembling a compact power bank or a large battery array, the \u003cstrong\u003e1P 18650 Battery Spacer\u003c\/strong\u003e provides the structure you need for a reliable and professional battery layout.\u003c\/p\u003e\r\n","brand":"18650Battery.com","offers":[{"title":"Default Title","offer_id":44589064847417,"sku":"SPACER-186501P","price":0.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/SPACER-186501P.jpg?v=1773255007"},{"product_id":"2p-battery-spacer-for-18650-cells","title":"2P Battery Spacer for 18650 Cells","description":"\u003cp\u003eOptimize your battery pack assembly with the \u003cstrong\u003e2P Battery Spacer for 18650 Cells\u003c\/strong\u003e — a practical and reliable solution for safely organizing two 18650 lithium-ion batteries in a parallel layout. This precision-molded spacer is ideal for use in \u003cstrong\u003eDIY battery packs, electric bikes, solar energy systems, power tools, and backup power supplies\u003c\/strong\u003e.\u003c\/p\u003e\r\n\r\n\u003cp\u003eMade from high-quality, flame-retardant plastic, this spacer ensures proper alignment and consistent spacing, minimizing the risk of short circuits, improving airflow, and enhancing thermal management during operation. The modular design allows seamless stacking and expansion, supporting custom configurations for small or large battery assemblies.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eDual Cell Design:\u003c\/strong\u003e Securely holds two 18650 batteries in parallel configuration for stable and efficient layout\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eStandard Compatibility:\u003c\/strong\u003e Fits most standard 18650 lithium-ion cells (18.3mm x 65mm)\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eImproved Safety:\u003c\/strong\u003e Promotes consistent spacing to reduce overheating and short circuit risk\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Material:\u003c\/strong\u003e Built from durable, flame-retardant plastic for long-lasting performance\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eExpandable System:\u003c\/strong\u003e Stackable and modular design perfect for custom battery pack builds\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003ePerfect for battery builders and engineers, the \u003cstrong\u003e2P 18650 battery holder spacer\u003c\/strong\u003e provides the foundation for safe, scalable, and professional-grade lithium-ion battery packs.\u003c\/p\u003e\r\n","brand":"18650Battery.com","offers":[{"title":"Default Title","offer_id":44589065011257,"sku":"SPACER-186502P","price":0.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/SPACER-186502P.jpg?v=1773255011"},{"product_id":"3p-battery-spacer-for-18650-cells","title":"3P Battery Spacer for 18650 Cells","description":"\u003cp\u003eEnsure precision and safety in your battery pack assembly with the \u003cstrong\u003e3P Battery Spacer for 18650 Cells\u003c\/strong\u003e. Designed to securely hold three 18650 lithium-ion batteries in a parallel configuration, this spacer is perfect for custom battery building projects, including \u003cstrong\u003ee-bikes, power tools, solar storage systems, and DIY electronics\u003c\/strong\u003e.\u003c\/p\u003e\r\n\r\n\u003cp\u003eCrafted from durable, heat-resistant plastic, the spacer maintains ideal spacing between cells, preventing short circuits and improving airflow to minimize heat buildup during use or charging. Its modular design makes it easy to combine with other spacers for large pack builds, supporting both hobbyists and professional battery pack manufacturers.\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003e3-Cell Parallel Configuration:\u003c\/strong\u003e Holds three 18650 batteries securely aligned for organized and efficient assembly\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fit:\u003c\/strong\u003e Compatible with standard 18.3mm x 65mm lithium-ion 18650 cells\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eImproved Safety:\u003c\/strong\u003e Maintains spacing to reduce the risk of overheating and short circuits\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eDurable Build:\u003c\/strong\u003e Made from high-strength, flame-retardant plastic for long-term use\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eModular and Stackable:\u003c\/strong\u003e Easily scalable to build custom battery packs in various sizes and shapes\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003eWhether you're building a power bank, electric vehicle battery, or custom energy storage solution, this \u003cstrong\u003e3P 18650 battery holder spacer\u003c\/strong\u003e offers reliability, safety, and efficiency in every build.\u003c\/p\u003e\r\n","brand":"18650Battery.com","offers":[{"title":"Default Title","offer_id":44589065273401,"sku":"SPACER-186503P","price":0.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/SPACER-186503P.jpg?v=1773255016"},{"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":44589065502777,"sku":"SPACER-217002PB","price":0.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/SPACER-217002PB.jpg?v=1773255020"},{"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":44589065699385,"sku":"SPACER-217002PS","price":0.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/SPACER-217002PS.jpg?v=1773255024"},{"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":44589065928761,"sku":"SPACER-217003PB","price":0.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/SPACER-217003PB.jpg?v=1773255028"},{"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":44589066092601,"sku":"SPACER-217003PS","price":0.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/SPACER-217003PS.jpg?v=1773255032"}],"url":"https:\/\/imrbatteries.com\/collections\/battery-cell-spacers.oembed","provider":"IMR Batteries","version":"1.0","type":"link"}