{"product_id":"18650-li-ion-battery-case-5-10-15-cell-nylon-shell-pcb-protection-board","title":"18650 Battery Case 5\/10\/15-Cell Nylon Shell with PCB Protection","description":"\n\u003ch2\u003e18650 Li-ion Battery Case with PCB Charging Protection Circuit Board\u003c\/h2\u003e\n\u003cp\u003eBuild, repair, or upgrade your own lithium battery packs with this durable \u003cstrong\u003e18650 Li-ion Battery Case\u003c\/strong\u003e. Available in 5-cell, 10-cell, and 15-cell configurations, this nylon shell enclosure features a rubber-coated finish for a secure grip and houses a built-in \u003cstrong\u003ePCB charging protection circuit board\u003c\/strong\u003e to help safeguard against overcharge, over-discharge, and short circuits during assembly. Ideal for electronics hobbyists, DIY builders, and technicians experienced in battery pack assembly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠ Important Notice:\u003c\/strong\u003e This product is a component kit — \u003cem\u003ebatteries are not included\u003c\/em\u003e. It is intended for individuals who are familiar with lithium battery performance and have practical hands-on experience in battery pack assembly. Please handle with appropriate care and knowledge.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Configurations:\u003c\/strong\u003e Choose from 5-cell, 10-cell, or 15-cell layouts to suit your project needs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNylon Shell + Rubber Coating:\u003c\/strong\u003e Durable plastic construction with a rubber-coated exterior for improved grip and protection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in PCB Protection:\u003c\/strong\u003e Integrated charging protection circuit board helps prevent overcharge, over-discharge, and short-circuit events\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlastic + Metal Construction:\u003c\/strong\u003e Sturdy, lightweight materials designed for long-term reliability in battery assembly projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Black Design:\u003c\/strong\u003e Sleek black finish suits a variety of DIY electronics builds and repair applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Assemble:\u003c\/strong\u003e Designed for straightforward battery pack assembly for experienced users\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic + Metal (Nylon Shell with Rubber Coating)\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\u003eCell Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18650 Li-ion Batteries (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePCB Charging Protection Circuit Board\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × Battery Case Set (no batteries)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA1:\u003c\/strong\u003e 11.5 × 4.5 × 7.5 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA2:\u003c\/strong\u003e 11.5 × 7.5 × 6.5 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA3:\u003c\/strong\u003e 11.5 × 7.5 × 8.2 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA4:\u003c\/strong\u003e 11.0 × 5.5 × 3.5 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA5:\u003c\/strong\u003e 9.0 × 7.0 × 12.0 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please refer to the size specifications above rather than product images for accurate dimensions. Minor measurement variations may occur. Colors may vary slightly between different monitor displays.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/t2-pure-bare-copper-wire-round-solid-uncoated-0-1-2mm-10m\"\u003eT2 Pure Bare Copper Wire 0.1–2mm Round Solid Uncoated 10M\u003c\/a\u003e – perfect for wiring battery pack connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/nitrile-work-gloves-anti-slip-full-finger-5-pair\"\u003e5-Pair Nitrile Work Gloves – Anti-Slip Full Finger Safety\u003c\/a\u003e – ideal hand protection when handling electronic components\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/stackable-non-slip-furniture-risers-anti-vibration-pads\"\u003eStackable Non-Slip Furniture Risers – Anti-Vibration Pads\u003c\/a\u003e – useful for keeping your workspace stable during assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does this 18650 battery case include batteries?\u003c\/h4\u003e\n\u003cp\u003eA: No — this is a battery case and PCB protection circuit board kit only. The 18650 lithium-ion battery cells are \u003cstrong\u003enot included\u003c\/strong\u003e. You will need to source compatible 18650 cells separately to complete your battery pack assembly.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does the PCB charging protection circuit board do?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in PCB (Protection Circuit Board) helps protect your battery pack during charging and discharging by guarding against overcharge, over-discharge, and short-circuit conditions, helping to extend battery life and improve assembly safety.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Who is this 18650 battery case designed for?\u003c\/h4\u003e\n\u003cp\u003eA: This product is designed for experienced electronics hobbyists, DIY builders, and technicians who are familiar with lithium-ion battery performance and have practical experience in assembling battery packs. It is not recommended for beginners without prior knowledge of battery assembly.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What configurations are available for the battery case?\u003c\/h4\u003e\n\u003cp\u003eA: The case is available in 5-cell, 10-cell, and 15-cell configurations, each coming in varying sizes (A1 through A5). Please refer to the specifications section above to select the correct size for your project.\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\": \"Does this 18650 battery case include batteries?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — this is a battery case and PCB protection circuit board kit only. The 18650 lithium-ion battery cells are not included. 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