{"product_id":"stairlie-9-0ah-18v-mk-18-battery-replacement-for-milwaukee-wk1890-tools-9000mah-power","title":"Stairlie 9.0Ah 18V Mk-18 Battery Replacement for Milwaukee WK1890 Tools | 9000mAh Power","description":"\u003ch2\u003ePower that lasts with Stairlie for Milwaukee Mk-18 tools\u003c\/h2\u003e\n\u003cp\u003eThe Stairlie 9.0Ah 18V battery replacement brings substantial runtime to your Milwaukee Mk-18 family. With a high-capacity 9000mAh cell and 18V nominal output, this pack delivers up to 162W of usable power. At about 920 g, it balances sturdy construction with on-tool balance, and a convenient charge level indicator lets you check status at a glance.\u003c\/p\u003e\n\n\u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh capacity: 9.0Ah (9000mAh) for longer sessions between charges\u003c\/li\u003e\n  \u003cli\u003eVoltage and power: 18V nominal, up to 162W\u003c\/li\u003e\n  \u003cli\u003eWeight: approximately 920 g for comfortable handling on-site\u003c\/li\u003e\n  \u003cli\u003eCharge level indicator: quick status check with a press of a button\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBroad compatibility across the Mk-18 ecosystem\u003c\/h3\u003e\n\u003cp\u003eDesigned to work with Milwaukee Mk-18 series, this battery is compatible with models such as 48-11-1850, 48-11-1840, 48-11-1815, 48-11-1820, 48-11-1828, 48-11-1890, and more. It also powers a wide range of M18 cordless tools, including popular kits like 2646-22CT, 2643-21CT, 2641-21CT, and 2646-21CT, helping reduce the need for multiple spare packs on busy days.\u003c\/p\u003e\n\n\u003ch3\u003ePerformance with safeguards\u003c\/h3\u003e\n\u003cp\u003ePremium Li-ion cells support efficient charging and energy use, with no memory effect to worry about. Built-in protections guard against over-charging, over-discharging, over-voltage, over-current, and short circuits, contributing to safer, more reliable charging and use.\u003c\/p\u003e\n\n\u003ch3\u003eSafety certifications and global usability\u003c\/h3\u003e\n\u003cp\u003eThis Mk-18 battery is CE, FCC, and ROHS certified, reflecting adherence to safety and environmental standards for reliable operation across regions.\u003c\/p\u003e\n\n\u003ch3\u003eReal-world benefits and use cases\u003c\/h3\u003e\n\u003cp\u003eOn demanding jobsites, the long runtime can help you maintain momentum between charges. The 9.0Ah capacity supports longer workflows, while the indicator helps you estimate remaining runtime. The broad compatibility means fewer spare packs and smoother tool transitions.\u003c\/p\u003e\n\n\u003ch3\u003eCare, maintenance, and what's included\u003c\/h3\u003e\n\u003cp\u003eExpect a ready-to-use, high-capacity 18V battery that replaces aging packs. For longevity, follow standard charging cycles and store in a cool, dry place when not in use to maintain performance over time.\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: Is the Stairlie 9.0Ah Mk-18 battery compatible with Milwaukee WK1890 tools?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It supports Milwaukee Mk-18 tools and many 48-11 series models, including kits like 2646-22CT.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What safety and certification features does this battery offer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes protections against over-charge, over-discharge, over-voltage, over-current, and short circuits, plus CE, FCC, and ROHS certifications.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Stairlie","offers":[{"title":"Default Title","offer_id":47464820375726,"sku":"B0DGTV4XP6","price":81.46,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/6012\/9710\/files\/stairlie-9-0ah-battery-mk-18-replacement.jpg?v=1770322362","url":"https:\/\/handyskook.ca\/products\/stairlie-9-0ah-18v-mk-18-battery-replacement-for-milwaukee-wk1890-tools-9000mah-power","provider":"HandySkook","version":"1.0","type":"link"}