{"product_id":"mt-18v-21v-lithium-battery-holder-connector-cable-diy-adapter","title":"MT 18V 21V Lithium Battery Holder Connector with Cable DIY","description":"\u003ch2\u003eMT 18V\/21V Lithium Battery Holder Connector with Cable\u003c\/h2\u003e\n\u003cp\u003ePower up your DIY projects with this versatile \u003cstrong\u003eMT 18V\/21V Lithium Battery Holder Adapter\u003c\/strong\u003e. Designed for makers, hobbyists, and power tool enthusiasts, this connector adapter lets you tap into your existing MT-series 18V or 21V lithium battery packs to run custom builds, DIY electronics, and workshop setups — no modifications needed to your battery.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal MT 18V\/21V Compatibility:\u003c\/strong\u003e Designed to fit MT-series 18V and 21V lithium battery packs for flexible DIY use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Output Cable:\u003c\/strong\u003e Comes with attached wiring so you can connect directly to your project or device without extra hardware.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Made from sturdy plastic housing and metal contacts for reliable, long-lasting electrical connection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Measures approximately 9.7 × 7.5 cm (3.82 × 2.95 in), easy to integrate into tight spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY-Ready Design:\u003c\/strong\u003e Perfect for custom power supply projects, workshop tools, robotics, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand New Quality:\u003c\/strong\u003e 100% new — each unit is quality-checked before shipping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Battery:\u003c\/strong\u003e MT 18V \/ 21V Lithium Battery\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic body + metal contacts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e ~9.7 × 7.5 cm \/ 3.82 × 2.95 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 × Battery Holder Connector with Cable (battery NOT included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to manual measurement, a tolerance of ±5 mm may exist. Slight color differences between product images and the actual item may occur due to lighting conditions.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Which battery brands are compatible with this MT 18V\/21V lithium battery holder adapter?\u003c\/h4\u003e\n\u003cp\u003eA: This battery holder connector is specifically designed for MT-series 18V and 21V lithium battery packs commonly used with power tools and DIY equipment. Always check your battery's terminal layout against the connector before use to ensure a proper fit.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this adapter come with a battery included?\u003c\/h4\u003e\n\u003cp\u003eA: No, the package includes only the battery holder connector with cable (1 piece). The lithium battery is not included and must be purchased separately.\u003c\/p\u003e\n\u003ch4\u003eQ: What can I use this DIY battery adapter for?\u003c\/h4\u003e\n\u003cp\u003eA: This adapter is ideal for a wide range of DIY and maker applications — including custom power supply setups, workshop tool conversions, robotics projects, and any build that requires a stable 18V or 21V lithium battery power source.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which battery brands are compatible with this MT 18V\/21V lithium battery holder adapter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This battery holder connector is specifically designed for MT-series 18V and 21V lithium battery packs commonly used with power tools and DIY equipment. 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