{"product_id":"milwaukee-m18-m12-multi-voltage-battery-charger-dual-slot-18v-12v-with-onboard-fuel-gauge-fast-charge","title":"Milwaukee M18\/M12 Multi-Voltage Battery Charger — Dual-Slot 18V \u0026 12V with Onboard Fuel Gauge, Fast Charge","description":"\u003cp\u003e\u003cstrong\u003eMilwaukee’s 48-59-1812 multi-voltage charger charges both 18V and 12V lithium-ion packs quickly while monitoring state-of-charge with an onboard fuel gauge.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact, jobsite-ready charger accepts one M18 (18V) and one M12 (12V) battery simultaneously and uses an intelligent communication chip to optimize charging. LED indicators show charging status, and the unit reduces current as batteries near full to preserve cell health and save energy. Designed for tradespeople who switch between tool platforms, it helps reduce downtime with fast charge cycles and a small footprint that fits a crowded workbench or van shelf.\u003c\/p\u003e\n\n\u003ch3\u003eHow fast will my batteries be ready for work?\u003c\/h3\u003e\n\u003cp\u003eThe charger supports rapid charging depending on battery type: compact M12 packs can reach full capacity in roughly 30 minutes, while larger extended-life M18 packs typically finish in about an hour. Actual times vary by battery capacity and remaining charge, but the unit is built to shorten wait periods between tool uses.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompact 12V batteries: around 30 minutes to full charge\u003c\/li\u003e\n  \u003cli\u003eExtended-life 18V batteries: approximately 60 minutes\u003c\/li\u003e\n  \u003cli\u003eSimultaneous charging: one 12V and one 18V pack at once\u003c\/li\u003e\n  \u003cli\u003eCharge time depends on battery model and starting charge level\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat protections and intelligence does the charger include?\u003c\/h3\u003e\n\u003cp\u003eAn onboard microcontroller communicates with each battery to manage charge rate and terminate or taper current as cells near full capacity. The charger also monitors temperature and will reduce or stop charging if a battery overheats, helping maintain battery safety and longevity without constant user supervision.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBattery communication chip for precise charge control\u003c\/li\u003e\n  \u003cli\u003eThermal monitoring to prevent overheating\u003c\/li\u003e\n  \u003cli\u003eAutomatic current tapering as charge completes\u003c\/li\u003e\n  \u003cli\u003eLED status indicators for clear, at-a-glance information\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will I know when a battery is ready or needs attention?\u003c\/h3\u003e\n\u003cp\u003eA column of LED lights reports each slot’s condition, including charging, fully charged, or maintenance alerts. This visual feedback lets you prioritize which pack to deploy and spot batteries that may need service or replacement, without removing them from the charger.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSeparate LEDs for each battery slot\u003c\/li\u003e\n  \u003cli\u003eLights show charging, fully charged, and maintenance states\u003c\/li\u003e\n  \u003cli\u003eQuick visual check saves time on busy jobsites\u003c\/li\u003e\n  \u003cli\u003eSimple front-facing layout for placement in tool rooms or vans\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis Milwaukee charger ships in easy-open bulk packaging, so you get the essential functionality without extra retail packaging waste. The compact footprint and ability to charge two platform batteries at once lower downtime and reduce the number of chargers you need to carry.\u003c\/p\u003e\n\n\u003cp\u003eWho is this for? Tradespeople, contractors, and serious DIYers who use both Milwaukee M18 and M12 tools and want a single, efficient charging station are the primary audience. It’s ideal for users who need rapid turnaround on batteries, clear charge-state feedback, and a rugged, compact charger that fits in crowded work environments. If you rotate between 12V and 18V Milwaukee tools on a daily basis and want to minimize downtime while protecting battery health, this dual-voltage charger is a practical addition to your kit.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this charger charge an M18 and M12 battery at the same time?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The unit accepts and charges one M18 (18V) and one M12 (12V) battery simultaneously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How does the charger indicate battery status?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: LED indicators display each slot’s status: charging, fully charged, or maintenance needed for quick checks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":48083203195038,"sku":"B08XWS58KV","price":56.89,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/milwaukee-dual-voltage-charger-front.jpg?v=1785828413","url":"https:\/\/northtrailauto.ca\/products\/milwaukee-m18-m12-multi-voltage-battery-charger-dual-slot-18v-12v-with-onboard-fuel-gauge-fast-charge","provider":"North Trail Auto","version":"1.0","type":"link"}