{"product_id":"21v-15-cell-18650-lithium-battery-pack-shell-cutting-machine","title":"21V 15-Cell 18650 Lithium Battery Pack Shell for Cutting Machine","description":"\u003cp\u003eUpgrade your power tool setup with the \u003cstrong\u003e21V 15-Cell 18650 Lithium Battery Pack Shell for Cutting Machines\u003c\/strong\u003e. This sturdy plastic housing is purpose-built to accommodate 15 individual 18650 lithium cells in a 5S3P or similar configuration, delivering a reliable 21V output ideal for cordless cutting machines, drills, and DIY power tools.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e21V Output:\u003c\/strong\u003e Delivers consistent, stable voltage to keep your cutting machine running at peak performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e15-Cell Capacity:\u003c\/strong\u003e Designed to house 15 standard 18650 lithium cells for high-capacity power storage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in IC Protection:\u003c\/strong\u003e Integrated circuit continuously monitors cell voltage and current to protect against overcharge, over-discharge, and short circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Plastic Construction:\u003c\/strong\u003e Lightweight yet tough housing resists everyday knocks and provides a secure enclosure for your battery cells.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Compatible with most 18650 lithium battery cells — great for DIY battery pack builds and replacements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlack Finish:\u003c\/strong\u003e Clean, professional black color that suits any power tool aesthetic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose This Battery Shell?\u003c\/h2\u003e\n\u003cp\u003eWhether you're rebuilding an aging battery pack or constructing a new one from scratch, this 21V 15-cell shell provides the structural integrity and electrical protection your project demands. The built-in IC detection system takes the guesswork out of cell management, automatically safeguarding your investment in premium 18650 cells.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 21V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCell Configuration:\u003c\/strong\u003e 15 cells (18650 format)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Built-in IC for voltage \u0026amp; current detection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Cells:\u003c\/strong\u003e 18650 Lithium batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor safe handling and usage guidelines for lithium-ion batteries, refer to the U.S. Consumer Product Safety Commission (CPSC) Lithium Battery Safety Resource.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the 21V 15-Cell 18650 Lithium Battery Pack Shell used for?\u003c\/h4\u003e\n\u003cp\u003eA: This battery shell is designed to house 15 standard 18650 lithium cells, providing a 21V power source for cordless cutting machines and other DIY power tools. It is ideal for building new battery packs or replacing worn-out housings.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this battery shell come with 18650 cells included?\u003c\/h4\u003e\n\u003cp\u003eA: No, the shell does not include 18650 lithium cells. It is a housing unit only — you will need to source compatible 18650 cells separately to complete your battery pack build.\u003c\/p\u003e\n\u003ch4\u003eQ: What protection features does the built-in IC offer?\u003c\/h4\u003e\n\u003cp\u003eA: The integrated circuit (IC) monitors individual cell voltage and overall current draw. This helps protect your 18650 cells from overcharging, over-discharging, and short-circuit scenarios, extending battery life and improving safety.\u003c\/p\u003e\n\u003ch4\u003eQ: What material is the battery shell made from?\u003c\/h4\u003e\n\u003cp\u003eA: The shell is made from durable plastic, making it lightweight, impact-resistant, and suitable for regular use in workshop and home DIY environments.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the 21V 15-Cell 18650 Lithium Battery Pack Shell used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This battery shell is designed to house 15 standard 18650 lithium cells, providing a 21V power source for cordless cutting machines and other DIY power tools. It is ideal for building new battery packs or replacing worn-out housings.\"}}, {\"@type\": \"Question\", \"name\": \"Does this battery shell come with 18650 cells included?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, the shell does not include 18650 lithium cells. It is a housing unit only — you will need to source compatible 18650 cells separately to complete your battery pack build.\"}}, {\"@type\": \"Question\", \"name\": \"What protection features does the built-in IC offer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The integrated circuit (IC) monitors individual cell voltage and overall current draw. This helps protect your 18650 cells from overcharging, over-discharging, and short-circuit scenarios, extending battery life and improving safety.\"}}, {\"@type\": \"Question\", \"name\": \"What material is the battery shell made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The shell is made from durable plastic, making it lightweight, impact-resistant, and suitable for regular use in workshop and home DIY environments.\"}}]}\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:\/\/vpggdm-rp.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Tech, Tools \u0026 Auto\", \"item\": \"https:\/\/vpggdm-rp.myshopify.com\/collections\/tech-tools-auto\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"21V 15-Cell 18650 Lithium Battery Pack Shell for Cutting Machine\", \"item\": \"https:\/\/vpggdm-rp.myshopify.com\/products\/21v-15-cell-18650-lithium-battery-pack-shell-cutting-machine\"}]}\u003c\/script\u003e","brand":"Qme","offers":[{"title":"Black","offer_id":49776489922774,"sku":"14:200026864#Black","price":24.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/5243\/8486\/files\/S490889216c3d4fb49a384f6aa9588da0E.webp?v=1785337012","url":"https:\/\/qmeboost.com\/products\/21v-15-cell-18650-lithium-battery-pack-shell-cutting-machine","provider":"Qme","version":"1.0","type":"link"}