{"product_id":"18v-bms-protection-board-makita-bl1830-bl1840-bl1850-bl1860-li-ion","title":"18V BMS Board for Makita BL1830 BL1840 BL1850 BL1860 Li-Ion","description":"\u003ch2\u003e18V BMS Battery Protection Board for Makita BL1830 \/ BL1840 \/ BL1850 \/ BL1860\u003c\/h2\u003e\n\u003cp\u003eKeep your Makita 18V lithium-ion battery packs running safely and reliably with this purpose-built \u003cstrong\u003eBattery Management System (BMS) Protection Circuit Board\u003c\/strong\u003e. Designed as a direct replacement PCB for Makita BL1830, BL1840, BL1850, and BL1860 battery packs, this board actively monitors and protects your cells from overcharge, over-discharge, overcurrent, and short-circuit events — extending the life of your valuable battery packs and keeping your tools performing at their best.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're a tradesperson, DIY enthusiast, or repair technician, this BMS board is an affordable and effective way to restore or protect a failing Makita 18V Li-Ion pack rather than replacing it entirely.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\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 battery packs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Full battery management — overcharge, over-discharge, overcurrent \u0026amp; short-circuit protection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Blue PCB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 50g per unit (lightweight and easy to install)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE certified for safety compliance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo high-concern chemicals\u003c\/strong\u003e — safe materials throughout\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e 1 × BMS Protection Board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Securely bagged for safe delivery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Use a BMS Protection Board?\u003c\/h3\u003e\n\u003cp\u003eA Battery Management System (BMS) is the electronic \"guardian\" of your lithium-ion battery pack. Without a functioning BMS, Li-Ion cells are vulnerable to dangerous overcharging and deep discharge cycles that can permanently damage cells or, in extreme cases, create a safety hazard. Replacing a faulty BMS board is one of the most cost-effective ways to restore a dead or underperforming battery pack back to full working order.\u003c\/p\u003e\n\n\u003cp\u003eFor further information on lithium-ion battery safety, visit the U.S. Consumer Product Safety Commission (CPSC) – Lithium-Ion Battery Safety.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccessory Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBattery Management System (BMS) PCB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMakita BL1830, BL1840, BL1850, BL1860\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLithium-Ion (Li-Ion)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharger Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-scr-solid-state-relay-switch-module-dc3-24v-40a-optocoupler\"\u003e1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-8m-displayport-to-hdmi-cable-4k-dp-adapter-pc-hdtv-projector\"\u003e1.8M DisplayPort to HDMI Cable 4K – DP Adapter for PC \u0026amp; TV\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/EnerSys\" target=\"_blank\" rel=\"noopener\"\u003eEnerSys\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Which Makita battery models is this BMS protection board compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This BMS protection circuit board is specifically designed for Makita 18V lithium-ion battery packs, including the BL1830, BL1840, BL1850, and BL1860 models. Always verify the model number on your existing battery pack before purchasing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does the BMS protection board actually protect against?\u003c\/h4\u003e\n\u003cp\u003eA: The Battery Management System (BMS) PCB protects your Li-Ion cells from overcharging, over-discharging, overcurrent draw, and short-circuit events. These protections help prevent cell damage, extend battery pack lifespan, and maintain safe operation during charging and use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this a direct replacement for a faulty BMS in my Makita battery pack?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This board is designed as a replacement BMS PCB for the listed Makita 18V battery packs. If your battery pack no longer holds charge or fails to charge correctly, a faulty BMS board is a common cause. Replacing it with this board (performed by a qualified technician) can restore your pack to working condition.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this product come with a battery or charger?\u003c\/h4\u003e\n\u003cp\u003eA: No. This listing is for the BMS protection board only. No battery cells or charger are included.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which Makita battery models is this BMS protection board compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This BMS protection circuit board is specifically designed for Makita 18V lithium-ion battery packs, including the BL1830, BL1840, BL1850, and BL1860 models. Always verify the model number on your existing battery pack before purchasing.\"}}, {\"@type\": \"Question\", \"name\": \"What does the BMS protection board actually protect against?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Battery Management System (BMS) PCB protects your Li-Ion cells from overcharging, over-discharging, overcurrent draw, and short-circuit events. These protections help prevent cell damage, extend battery pack lifespan, and maintain safe operation during charging and use.\"}}, {\"@type\": \"Question\", \"name\": \"Is this a direct replacement for a faulty BMS in my Makita battery pack?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. This board is designed as a replacement BMS PCB for the listed Makita 18V battery packs. If your battery pack no longer holds charge or fails to charge correctly, a faulty BMS board is a common cause. Replacing it with this board (performed by a qualified technician) can restore your pack to working condition.\"}}, {\"@type\": \"Question\", \"name\": \"Does this product come with a battery or charger?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. This listing is for the BMS protection board only. 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