{"product_id":"makita-18v-18650-battery-protection-board-3-alloy-21v-bms-kit","title":"Makita 18V 18650 BMS Battery Protection Board – 3-Alloy 21V","description":"\u003ch2\u003eMakita 18V 18650 Battery Protection Board – 6MOS 3-Alloy 21V BMS with Temperature Control\u003c\/h2\u003e\n\u003cp\u003eKeep your Makita power tools running safely and efficiently with this \u003cstrong\u003e6MOS 3-Alloy 21V Battery Management System (BMS) Protection Board\u003c\/strong\u003e. Engineered for 18650 lithium-ion cell packs, this compact board features built-in temperature control and side-light compatibility, making it an ideal replacement or upgrade component for your Makita 18V battery packs.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're rebuilding a worn-out battery pack or protecting a fresh one, this BMS board guards your cells against overcharge, over-discharge, and short circuit — helping extend the working life of your battery and your tools.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3-Alloy Construction:\u003c\/strong\u003e Premium-grade alloy design for improved conductivity and durability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e21V Protection Circuit:\u003c\/strong\u003e Safeguards 18650 lithium cells in Makita 18V battery configurations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Temperature Control:\u003c\/strong\u003e Monitors and regulates heat during charge\/discharge cycles to protect battery integrity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSide Light Compatibility:\u003c\/strong\u003e Designed specifically to support Makita-style battery packs with integrated side indicator lights\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Tool Compatibility:\u003c\/strong\u003e Suitable for use with electric scissors, electric hammers, electric saws, and other Makita 18V cordless tools\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight Design:\u003c\/strong\u003e Only 30g per set — minimal added weight to your battery rebuild\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Integration:\u003c\/strong\u003e Drop-in replacement board packaged securely in a protective bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccessory Type:\u003c\/strong\u003e Battery Protection Board (BMS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Voltage:\u003c\/strong\u003e 18V (Makita) \/ 21V protection circuit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCell Compatibility:\u003c\/strong\u003e 18650 Lithium-Ion\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight per Set:\u003c\/strong\u003e 30g\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContents:\u003c\/strong\u003e 1 × Protection Board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Bag\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Included:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharger Included:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Tools Include\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eElectric Scissors\u003c\/li\u003e\n  \u003cli\u003eElectric Hammers\u003c\/li\u003e\n  \u003cli\u003eElectric Saws\u003c\/li\u003e\n  \u003cli\u003eOther Makita 18V cordless power tools using 18650 cell packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on safe lithium battery handling and power tool safety, visit CPSC.gov – Lithium-Ion Battery Safety.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\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\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Anker\" target=\"_blank\" rel=\"noopener\"\u003eAnker\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this Makita 18V BMS protection board compatible with all 18650 lithium-ion cell configurations?\u003c\/h4\u003e\n\u003cp\u003eA: This 3-alloy 21V protection board is designed specifically for Makita-style 18V battery packs using 18650 lithium-ion cells. It is compatible with battery packs used in electric scissors, electric hammers, and electric saws. Always verify your cell configuration before installation.\u003c\/p\u003e\n\u003ch4\u003eQ: Does the protection board include a battery or charger?\u003c\/h4\u003e\n\u003cp\u003eA: No — this listing includes only the BMS protection board (1 piece per set). Batteries and chargers are not included. It is intended as a replacement or upgrade component for existing 18650 cell battery rebuilds.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the temperature control feature do?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in temperature control circuit monitors heat levels during both charging and discharging. If temperatures exceed safe operating limits, the board activates protective measures to help prevent cell damage and maintain the longevity of your battery pack.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the 21V rating mean for an 18V Makita battery?\u003c\/h4\u003e\n\u003cp\u003eA: Lithium-ion cells have a nominal voltage (18V) and a fully charged peak voltage (21V). The 21V protection rating means the board is calibrated to handle the full charge voltage of a Makita 18V lithium-ion pack, ensuring proper overcharge protection at peak capacity.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this Makita 18V BMS protection board compatible with all 18650 lithium-ion cell configurations?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This 3-alloy 21V protection board is designed specifically for Makita-style 18V battery packs using 18650 lithium-ion cells. It is compatible with battery packs used in electric scissors, electric hammers, and electric saws. Always verify your cell configuration before installation.\"}}, {\"@type\": \"Question\", \"name\": \"Does the protection board include a battery or charger?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — this listing includes only the BMS protection board (1 piece per set). Batteries and chargers are not included. It is intended as a replacement or upgrade component for existing 18650 cell battery rebuilds.\"}}, {\"@type\": \"Question\", \"name\": \"What does the temperature control feature do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The built-in temperature control circuit monitors heat levels during both charging and discharging. If temperatures exceed safe operating limits, the board activates protective measures to help prevent cell damage and maintain the longevity of your battery pack.\"}}, {\"@type\": \"Question\", \"name\": \"What does the 21V rating mean for an 18V Makita battery?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Lithium-ion cells have a nominal voltage (18V) and a fully charged peak voltage (21V). The 21V protection rating means the board is calibrated to handle the full charge voltage of a Makita 18V lithium-ion pack, ensuring proper overcharge protection at peak capacity.\"}}]}\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:\/\/vd0uzy-jp.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Tools \u0026 Hardware\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/collections\/tools-hardware\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Makita 18V 18650 BMS Battery Protection Board – 3-Alloy 21V\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/products\/makita-18v-18650-battery-protection-board-3-alloy-21v-bms-kit\"}]}\u003c\/script\u003e","brand":"Peaceful Pleasures Health and Wellness","offers":[{"title":"black","offer_id":53667397042489,"sku":"1005010453224238-black","price":14.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/3689\/5801\/files\/Sd33f0ced3bed4c6cb7628eb6b269bf3ah.webp?v=1783012635","url":"https:\/\/peacefulpleasureswellness.com\/products\/makita-18v-18650-battery-protection-board-3-alloy-21v-bms-kit","provider":"Peaceful Pleasures Health and Wellness","version":"1.0","type":"link"}