{"product_id":"18650-li-ion-battery-case-holder-abs-diy-storage-box","title":"18650 Battery Case Holder – 1\/2\/3 Slot ABS DIY Storage Box","description":"\n\u003ch2\u003e18650 Li-ion Battery Case Holder – Durable ABS Storage Box for DIY Projects\u003c\/h2\u003e\n\u003cp\u003eKeep your 18650 lithium-ion cells safe, organized, and ready for action with this sturdy plastic battery case holder. Whether you're building a custom power bank, wiring up a DIY lamp, powering a toy, or tackling any electronics project, this compact rectangular holder makes battery management effortless. Available in 1-slot, 2-slot, and 3-slot configurations to suit your exact circuit needs.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality ABS Plastic\u003c\/strong\u003e – Tough, impact-resistant construction ensures long-lasting durability through repeated use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMetallic Spring Contacts\u003c\/strong\u003e – Built-in metal springs allow quick, secure battery installation and deliver reliable electrical contact for your DIY circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Slot Configurations\u003c\/strong\u003e – 1-slot for simple single-cell setups; 2-slot for parallel circuits (same voltage, increased capacity); 3-slot for series circuits (stacked voltage output).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal DIY Compatibility\u003c\/strong\u003e – Perfect external power source for toys, LED lamps, flashlights, RC projects, Arduino builds, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight\u003c\/strong\u003e – Rectangular design fits neatly into project enclosures and tight spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Battery Access\u003c\/strong\u003e – Simple snap-in design makes swapping cells fast and frustration-free.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eSlot Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e1 Slot, 2 Slots, 3 Slots\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCircuit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e2 Slots = Parallel | 3 Slots = Series\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (3-slot)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e10.1 × 8.0 × 2.4 cm \/ 3.98 × 3.15 × 0.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (2-slot)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e10.1 × 6.0 × 2.4 cm \/ 3.98 × 2.36 × 0.94 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (1-slot)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e9.5 × 4.0 × 2.0 cm \/ 3.74 × 1.57 × 0.79 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e1 Piece\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px;border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 18650 Battery Case Holder (batteries and other accessories NOT included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePlease allow ±1 cm measurement tolerance due to manual measurement.\u003c\/li\u003e\n  \u003cli\u003eActual color may vary slightly from screen to screen due to monitor calibration differences.\u003c\/li\u003e\n  \u003cli\u003eNo retail packaging included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExplore More from Our Store\u003c\/h3\u003e\n\u003cp\u003eLooking for more DIY and maker essentials? Check out these popular picks:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster | Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/best-seat-in-the-house-retro-quote-canvas-wall-art-print\"\u003e\"Best Seat In The House\" Retro Quote Canvas Wall Art Print\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor safety guidelines on battery storage and handling, refer to the U.S. Consumer Product Safety Commission – Lithium-Ion Battery Safety.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Battery_holder\" target=\"_blank\" rel=\"noopener\"\u003eBattery holder\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What size batteries fit in this 18650 battery case holder?\u003c\/h4\u003e\n\u003cp\u003eA: This battery case holder is specifically designed for standard 18650 Li-ion cylindrical cells (18 mm diameter × 65 mm length). It does not fit AA, AAA, or other battery sizes.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the 2-slot and 3-slot configurations?\u003c\/h4\u003e\n\u003cp\u003eA: The 2-slot holder connects batteries in a parallel circuit, which keeps voltage the same as a single cell while doubling the capacity (mAh). The 3-slot holder connects batteries in a series circuit, stacking the voltage output of each cell — ideal when your project requires higher voltage.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this battery case for Arduino or other maker board projects?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This 18650 battery holder is a popular choice for Arduino, Raspberry Pi accessories, LED drivers, and other DIY maker board builds that require a compact, reliable 3.7V (or higher, in series) power source.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are the batteries included with the case?\u003c\/h4\u003e\n\u003cp\u003eA: No, batteries are not included. This listing is for the plastic battery case\/holder only. Please source 18650 Li-ion cells separately.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What size batteries fit in this 18650 battery case holder?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This battery case holder is specifically designed for standard 18650 Li-ion cylindrical cells (18 mm diameter × 65 mm length). It does not fit AA, AAA, or other battery sizes.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the 2-slot and 3-slot configurations?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 2-slot holder connects batteries in a parallel circuit, which keeps voltage the same as a single cell while doubling the capacity (mAh). 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