{"product_id":"21v-25v-42v-lithium-battery-case-30-cell-large-capacity-rechargeable","title":"21V 25V 42V Lithium Battery Case 30-Cell Large Capacity","description":"\u003cp\u003ePower your tools and projects without interruption with this \u003cstrong\u003e21V \/ 25V \/ 42V Lithium Battery Case\u003c\/strong\u003e. Designed to house 30 lithium cells, this large-capacity rechargeable battery enclosure delivers reliable, long-lasting energy for power tools, DIY builds, e-bikes, and more. Choose from three nominal voltage configurations to match your exact application — all in one sturdy, well-engineered housing.\u003c\/p\u003e\n\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree Voltage Options:\u003c\/strong\u003e Select 21V, 25V, or 42V to suit your specific power tool or device requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e30-Cell Capacity:\u003c\/strong\u003e Accommodates 30 individual lithium cells for high-capacity, long-runtime performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built from a robust plastic and metal combination that protects cells and withstands workshop conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRechargeable Design:\u003c\/strong\u003e Recharge and reuse instead of constantly replacing disposable batteries — saving money and reducing waste over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Ideal for cordless power tools, custom battery packs, robotics, electric scooters, and DIY energy storage projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Organized:\u003c\/strong\u003e Keeps all 30 cells neatly housed and secure, preventing shorts and making handling straightforward and safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Voltages:\u003c\/strong\u003e 21V \/ 25V \/ 42V (3 options)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCell Capacity:\u003c\/strong\u003e 30 cells\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic + Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Rechargeable lithium battery case \/ enclosure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuitable For:\u003c\/strong\u003e Power tools, DIY battery packs, e-bikes, and custom builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor general guidance on lithium battery safety and best practices, refer to the U.S. Consumer Product Safety Commission (CPSC) – Lithium-Ion Battery Safety Information.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltages does this lithium battery case support?\u003c\/h4\u003e\n\u003cp\u003eA: This lithium battery case is available in three nominal voltage configurations — 21V, 25V, and 42V — allowing you to select the right option for your power tool or custom battery pack project.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many cells does this battery case hold?\u003c\/h4\u003e\n\u003cp\u003eA: The case is designed to house 30 individual lithium cells, providing a large capacity setup suitable for high-demand cordless tools and DIY energy storage applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the battery case made of?\u003c\/h4\u003e\n\u003cp\u003eA: The enclosure is constructed from a combination of durable plastic and metal, ensuring structural integrity, protection for the cells, and resistance to the everyday demands of workshop or outdoor use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this battery case rechargeable?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This is a rechargeable lithium battery case, meaning you can recharge and reuse it repeatedly — reducing ongoing costs and making it a sustainable alternative to single-use battery solutions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltages does this lithium battery case support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This lithium battery case is available in three nominal voltage configurations — 21V, 25V, and 42V — allowing you to select the right option for your power tool or custom battery pack project.\"}}, {\"@type\": \"Question\", \"name\": \"How many cells does this battery case hold?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The case is designed to house 30 individual lithium cells, providing a large capacity setup suitable for high-demand cordless tools and DIY energy storage applications.\"}}, {\"@type\": \"Question\", \"name\": \"What is the battery case made of?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The enclosure is constructed from a combination of durable plastic and metal, ensuring structural integrity, protection for the cells, and resistance to the everyday demands of workshop or outdoor use.\"}}, {\"@type\": \"Question\", \"name\": \"Is this battery case rechargeable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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