{"product_id":"makita-bl1830-bl1840-bl1850-bl1860-18v-bms-pcb-charging-protection-board","title":"Makita BL1830–BL1860 18V BMS PCB Battery Protection Board","description":"\n\u003ch2\u003eRestore Your Makita 18V Battery with a New BMS Protection Board\u003c\/h2\u003e\n\u003cp\u003eGive your Makita 18V lithium-ion battery a second life with this direct-replacement \u003cstrong\u003eBMS PCB Charging Protection Board\u003c\/strong\u003e. Designed specifically for the \u003cstrong\u003eMakita BL1830, BL1840, BL1850, and BL1860\u003c\/strong\u003e battery series, this board acts as the brain of your battery pack — managing safe charging, discharging, over-voltage protection, short-circuit protection, and cell balancing. Instead of buying an entirely new battery, replacing the protection board is a cost-effective repair solution for DIYers and professionals alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Makita BL1830, BL1840, BL1850, BL1860 18V Lithium-Ion Batteries\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Battery Management System (BMS) — protects against overcharge, over-discharge, over-current, and short circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Blue PCB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 50g (single set)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e Low voltage (below 75V DC \/ below 50V AC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1× BMS Charging Protection Board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Bag\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Replace Your BMS Board?\u003c\/h3\u003e\n\u003cp\u003eOver time, the BMS protection circuit inside your lithium-ion battery pack can fail due to heat, overcharging cycles, or general wear. Symptoms include the battery not charging, rapid discharge, or the charger showing an error. Replacing just the BMS board is a fraction of the cost of a new battery and is a popular repair among tool enthusiasts and repair technicians.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× BMS PCB Charging Protection Board (Blue)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Safety Information\u003c\/h3\u003e\n\u003cp\u003eLithium-ion battery repair should be performed by individuals with appropriate electronics knowledge. Always discharge your battery fully before opening the pack, and follow safe handling procedures. For general electrical safety guidance, visit the U.S. Consumer Product Safety Commission (CPSC) Battery Safety page.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Battery_management_system\" target=\"_blank\" rel=\"noopener\"\u003eBattery management system\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Which Makita battery models is this BMS PCB protection board compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This replacement BMS charging protection board is designed for the Makita BL1830, BL1840, BL1850, and BL1860 18V lithium-ion battery series. Please verify your battery model number before purchasing to ensure compatibility.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does a BMS protection board do in a lithium-ion battery?\u003c\/h4\u003e\n\u003cp\u003eA: A Battery Management System (BMS) PCB protects your lithium-ion cells from overcharging, over-discharging, short circuits, and excessive current draw. It also helps balance cells for longer battery life and safer operation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is replacing the BMS board difficult?\u003c\/h4\u003e\n\u003cp\u003eA: Replacing the BMS board requires basic electronics skills, including soldering. It is recommended for users comfortable with DIY electronics repair. Always take proper safety precautions when working with lithium-ion battery packs.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this board come with a battery or charger?\u003c\/h4\u003e\n\u003cp\u003eA: No — this listing includes only the BMS PCB Charging Protection Board (1×). A battery pack and charger are not included.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which Makita battery models is this BMS PCB protection board compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This replacement BMS charging protection board is designed for the Makita BL1830, BL1840, BL1850, and BL1860 18V lithium-ion battery series. Please verify your battery model number before purchasing to ensure compatibility.\"}}, {\"@type\": \"Question\", \"name\": \"What does a BMS protection board do in a lithium-ion battery?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A Battery Management System (BMS) PCB protects your lithium-ion cells from overcharging, over-discharging, short circuits, and excessive current draw. 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A battery pack and charger are not included.\"}}]}\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:\/\/0i45ne-c8.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Makita BL1830–BL1860 18V BMS PCB Battery Protection Board\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/products\/makita-bl1830-bl1840-bl1850-bl1860-18v-bms-pcb-charging-protection-board\"}]}\u003c\/script\u003e","brand":"Zpaxo","offers":[{"title":"A","offer_id":54154540745014,"sku":"14:200004890#A","price":25.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/7774\/3158\/files\/Sf732125de4824f05ba31caf2f0cc64d3Z.webp?v=1782425978","url":"https:\/\/0i45ne-c8.myshopify.com\/products\/makita-bl1830-bl1840-bl1850-bl1860-18v-bms-pcb-charging-protection-board","provider":"Zpaxo","version":"1.0","type":"link"}