{"product_id":"18v-battery-chip-pcb-board-replacement-for-makita-bl1830-bl1840-bl1850-bl1860","title":"18V Battery Charging PCB Board For Makita BL1830 BL1840 BL1850 BL1860","description":"\u003cdiv\u003e\n\u003cp\u003eRestore reliable runtime to worn 18V lithium-ion power tool batteries with this direct-compatible charging protection board. Engineered specifically to fit Makita BL1830, BL1840, BL1850, and BL1860 battery chassis, this copper-clad laminate circuit replaces degraded factory boards that cause voltage drops, sudden shutdowns, or unresponsive tool triggers. By actively balancing current flow and enforcing strict thermal boundaries, it prevents dangerous overheating while keeping every cell group within safe operating limits. Ideal for electricians, makers, and maintenance technicians who prefer refurbishing existing packs rather than purchasing costly OEM replacements.\u003c\/p\u003e \u003ch2\u003eBenefits \u0026amp; Practical Application Tips\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExtends pack longevity by maintaining consistent voltage delivery during heavy-duty grinding, drilling, or impact applications.\u003c\/li\u003e\n\u003cli\u003eIntegrates seamlessly into standard 5-string Li-ion layouts for predictable 3.0Ah capacity management.\u003c\/li\u003e\n\u003cli\u003eEnsure pins align flush with the battery contacts after soldering to prevent arcing, and store spare boards in anti-static bags to preserve terminal integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBoard Composition: Copper-clad laminate substrate\u003c\/li\u003e\n\u003cli\u003eSystem Voltage: 18V DC (Li-ion chemistry)\u003c\/li\u003e\n\u003cli\u003eNominal Capacity Handling: 3.0Ah across 5-series configuration\u003c\/li\u003e\n\u003cli\u003eMax Charging Current: ≤12A\u003c\/li\u003e\n\u003cli\u003eOvercharge Safeguard: 4.25V cutoff with 2-second verification delay\u003c\/li\u003e\n\u003cli\u003eUnder-voltage Lockout: Triggers at 14V to protect cells\u003c\/li\u003e\n\u003cli\u003eThermal Management: Disengages charge\/discharge at 100 °C, resumes at 85 °C\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePackage includes:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLithium Battery PCB Board (available as 1, 2, or 5 units based on selected option)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eOperational Reminders\u003c\/h2\u003e\n\u003cp\u003eThis circuit is designed exclusively for DIY electrical refurbishment and professional battery restoration. Verify your battery housing dimensions and pin layout matches the original manufacturer template before proceeding. Use insulated tools and work only on discharged packs to avoid short circuits. Store unused units away from moisture and extreme humidity.\u003c\/p\u003e \u003cp\u003eAll electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.\u003c\/p\u003e \u003cp\u003eDependable technical components delivered since 2002 to customers relying on intercyprus.com.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"InterCyprus Trading Ltd","offers":[{"title":"2 Pcs","offer_id":55133453648214,"sku":"1005009749620179-2 Pcs","price":31.49,"currency_code":"EUR","in_stock":true},{"title":"1 Pcs","offer_id":55133453680982,"sku":"1005009749620179-1 Pcs","price":22.2,"currency_code":"EUR","in_stock":true},{"title":"5 Pcs","offer_id":55133453713750,"sku":"1005009749620179-5 Pcs","price":56.92,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0530\/0604\/1274\/files\/S6567496b7c9b449d94807b4876999d5f8.webp?v=1788033710","url":"https:\/\/www.intercyprus.com\/el\/products\/18v-battery-chip-pcb-board-replacement-for-makita-bl1830-bl1840-bl1850-bl1860","provider":"InterCyprus Trading Ltd","version":"1.0","type":"link"}