{"product_id":"21700-battery-holder-box-1-2-3-4-slot-abs-plastic-case","title":"21700 Battery Holder Box Set – 1\/2\/3\/4 Slot ABS Plastic Case","description":"\n\u003ch2\u003e21700 Battery Holder Box Set – 1, 2, 3 \u0026amp; 4 Slot Configurations\u003c\/h2\u003e\n\u003cp\u003eThis versatile 4-piece set of 21700 battery holder boxes gives you everything you need to power your electronics projects with confidence. Each holder features a rugged ABS plastic housing combined with copper contact points and spring-loaded metal pins for reliable, low-resistance connections every time.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building PCB assemblies, robotics prototypes, LED setups, or portable power packs, this set has you covered with four different slot configurations in one convenient package.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSturdy ABS + Copper Construction:\u003c\/strong\u003e Flame-resistant and heat-resistant ABS plastic housing paired with brass rivet copper connectors ensures optimal conductivity and long-lasting durability across electronics projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring-Loaded Metal Pins:\u003c\/strong\u003e Secure battery contact with spring-loaded pins and base screw holes for easy, tool-minimal installation into your project enclosure or PCB layout.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Wiring Options:\u003c\/strong\u003e Supports both parallel and series configurations (1, 2, 3, or 4 slots) to deliver varying power outputs — 3.7V per cell — ideal for a wide range of voltage requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide 21700 Compatibility:\u003c\/strong\u003e Designed specifically for 21700 lithium cells, compatible with digital displays, portable gadgets, robotics, and other low-power electronics that need consistent energy delivery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Space-saving black plastic casing keeps batteries secure while maintaining a lightweight profile — perfect for prototyping, lab work, or field electronics maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ABS Plastic + Copper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e Approx. 83mm \/ 3.26 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 3.7V per cell (series\/parallel configurable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Battery:\u003c\/strong\u003e 21700 cells\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlots Available:\u003c\/strong\u003e 1-slot, 2-slot, 3-slot, 4-slot (one of each included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e4 × 21700 Battery Holder Boxes (1-slot, 2-slot, 3-slot, and 4-slot — one each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow ±1–2cm tolerance due to manual measurement. Slight color variations may occur due to different display settings.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hex-nut-bolt-extractor-tool-kit-10-piece\"\u003e10-Pc Hex Nut \u0026amp; Bolt Extractor Kit 9–19mm | HIP Tools\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-piece-complete-gardening-tool-kit\"\u003e10-Piece Gardening Tool Kit – Iron Head \u0026amp; Plastic Handle\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/105-degree-right-angle-driver-with-hex-screwdriver-bit\"\u003e105° Right Angle Driver with 1\/4\" Hex Screwdriver Bit | HIP\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 compatible with these 21700 battery holder boxes?\u003c\/h4\u003e\n\u003cp\u003eA: These battery holder boxes are designed exclusively for 21700 lithium cells. Each slot accommodates a standard 21700 battery (approximately 21mm diameter × 70mm length), making them ideal for electronics prototyping, DIY builds, and portable power applications using this popular cell size.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I wire the battery slots in series or parallel configuration?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The holders support both series and parallel wiring configurations. When wired in series, each 3.7V cell adds to the total voltage output; when wired in parallel, cells share the load for greater capacity. This flexibility makes the set suitable for a wide range of project voltage and current requirements.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many battery boxes are included in the package?\u003c\/h4\u003e\n\u003cp\u003eA: The package includes 4 battery holder boxes in total — one 1-slot, one 2-slot, one 3-slot, and one 4-slot holder. This gives you a complete set of configurations to suit various electronics projects without purchasing them separately.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are the battery holders easy to mount or install?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. Each holder features base screw holes for secure mounting and spring-loaded metal pins for effortless battery insertion and removal. Minimal tools are needed for installation, making them beginner-friendly for hobbyists and experienced makers alike.\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 compatible with these 21700 battery holder boxes?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These battery holder boxes are designed exclusively for 21700 lithium cells. Each slot accommodates a standard 21700 battery (approximately 21mm diameter × 70mm length), making them ideal for electronics prototyping, DIY builds, and portable power applications using this popular cell size.\"}}, {\"@type\": \"Question\", \"name\": \"Can I wire the battery slots in series or parallel configuration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The holders support both series and parallel wiring configurations. When wired in series, each 3.7V cell adds to the total voltage output; when wired in parallel, cells share the load for greater capacity. This flexibility makes the set suitable for a wide range of project voltage and current requirements.\"}}, {\"@type\": \"Question\", \"name\": \"How many battery boxes are included in the package?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The package includes 4 battery holder boxes in total — one 1-slot, one 2-slot, one 3-slot, and one 4-slot holder. This gives you a complete set of configurations to suit various electronics projects without purchasing them separately.\"}}, {\"@type\": \"Question\", \"name\": \"Are the battery holders easy to mount or install?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. Each holder features base screw holes for secure mounting and spring-loaded metal pins for effortless battery insertion and removal. Minimal tools are needed for installation, making them beginner-friendly for hobbyists and experienced makers alike.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/rw8eae-v1.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Tools \u0026 Household\", \"item\": \"https:\/\/rw8eae-v1.myshopify.com\/collections\/tools-household\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"21700 Battery Holder Box Set – 1\/2\/3\/4 Slot ABS Plastic Case\", \"item\": \"https:\/\/rw8eae-v1.myshopify.com\/products\/21700-battery-holder-box-1-2-3-4-slot-abs-plastic-case\"}]}\u003c\/script\u003e","brand":"HIP","offers":[{"title":"CN","offer_id":46305495122154,"sku":"1005012628538589-CN","price":29.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4590\/4618\/files\/Sdcd7c29961194db6b042d79a71ac796bA.webp?v=1789878902","url":"https:\/\/hipcustomerservice.com\/products\/21700-battery-holder-box-1-2-3-4-slot-abs-plastic-case","provider":"HIP","version":"1.0","type":"link"}