{"product_id":"metabo-hpt-18v-to-milwaukee-18v-battery-adapter","title":"Metabo HPT 18V to Milwaukee 18V Battery Adapter","description":"\u003cp\u003eUse your Metabo HPT 18V batteries on Milwaukee M18 cordless tools, without buying into a second battery platform. Power passes straight through: Metabo HPT 18V and Milwaukee M18 share the same 18V rating. The molded ABS housing keeps it light and hard-wearing, and pure copper contacts keep current delivery steady. A practical way to extend the value of the Metabo HPT 18V batteries you already have.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSKU\u003c\/b\u003e PTA-HPT18-MIL18\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFits this battery\u003c\/b\u003e Metabo HPT 18V (Lithium-Ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery voltage\u003c\/b\u003e 18V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRuns these tools\u003c\/b\u003e Milwaukee M18 (Lithium-Ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTool voltage\u003c\/b\u003e 18V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHousing\u003c\/b\u003e ABS (Injected)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTerminals\u003c\/b\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCurrent rating\u003c\/b\u003e 40A continuous (80A peak at 18VDC for up to 2 seconds)720 Watt continuous at 18V nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal wiring\u003c\/b\u003e 5 mm²\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight\u003c\/b\u003e 117 g (4.1 oz \/ 0.26 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColour\u003c\/b\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating humidity\u003c\/b\u003e 5–95% RH\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating temperature\u003c\/b\u003e -10 °C to 50 °C (14 °F to 122 °F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUSB port\u003c\/b\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat's in the box\u003c\/b\u003e Battery Adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWarranty\u003c\/b\u003e 12 months after the date of delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRevision\u003c\/b\u003e Revision 01 (released on August 21, 2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy choose this adapter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYour Metabo HPT 18V battery and Milwaukee M18 tools run at the same voltage, so the adapter changes the fitting rather than converting anything.\u003c\/li\u003e\n\u003cli\u003eInjection-moulded ABS, not 3D printed — no layer lines to split under load.\u003c\/li\u003e\n\u003cli\u003eSolid copper terminals, so less of the current is lost as heat.\u003c\/li\u003e\n\u003cli\u003e5 mm² internal wiring, rated for 40A continuous with 80A peak at 18VDC for up to 2 seconds, so a high-draw tool is not held back by the adapter.\u003c\/li\u003e\n\u003cli\u003eCovered by a 12-month warranty from the day it arrives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMetabo HPT 18V and Milwaukee M18 compatibility\u003c\/h2\u003e\n\u003cp\u003eIt works in one direction only: Metabo HPT batteries powering Milwaukee tools. For the opposite pairing, see \u003ca href=\"https:\/\/powertoolsadapters.com\/collections\/milwaukee-m18-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259847880945\" data-pta-action=\"reverse_click\" data-pta-surface=\"reverse_longform\" data-pta-label=\"Milwaukee M18\"\u003eadapters that run on Milwaukee M18 batteries\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eCompatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the \u003ca href=\"https:\/\/powertoolsadapters.com\/collections\/metabo-hpt-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259848765681\"\u003eMetabo HPT 18V\u003c\/a\u003e platform and that your tool takes \u003ca href=\"https:\/\/powertoolsadapters.com\/collections\/milwaukee-m18-battery-adapters?filter.p.m.version2.tool_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259847880945\"\u003eMilwaukee M18\u003c\/a\u003e batteries.\u003c\/p\u003e\n\u003ch2\u003eImportant charging and safety information\u003c\/h2\u003e\n\u003cp\u003eThis adapter is for powering cordless tools and nothing else. It cannot charge Metabo HPT or Milwaukee batteries and must never be connected to a charger of any kind. Always take the battery out of the adapter before charging, and charge it on the original charger made for your Metabo HPT 18V battery.\u003c\/p\u003e\n\u003ch2\u003eBefore you buy\u003c\/h2\u003e\u003cdiv\u003e\n\u003ch3\u003eMetabo HPT 18V batteries\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\nThis adapter is not compatible with Metabo CAS batteries.\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv\u003e\n\u003ch3\u003eMilwaukee M18 tools\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\nMilwaukee 2771-20 Transfer Pump: Inside the battery compartment, a small piece of plastic must be trimmed. Will not work with Ryobi battery due to spacing issue.\n\u003ca href=\"https:\/\/power-tools-adapters.myshopify.com\/cdn\/shop\/files\/2771-20_1.jpg?v=12445649599424358032\" target=\"_blank\" rel=\"noopener\"\u003e\nSee photo\n\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\nMilwaukee 2825-20ST Fuel String Trimmer: The black shroud needs to be removed or slightly trimmed.\n\u003ca href=\"https:\/\/power-tools-adapters.myshopify.com\/cdn\/shop\/files\/2825-20ST_1.jpg?v=114320472417683500\" target=\"_blank\" rel=\"noopener\"\u003e\nSee photo\n\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Power Tools Adapters","offers":[{"title":"Default Title","offer_id":48622473052401,"sku":"PTA-HPT18-MIL18","price":45.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/8055\/4184\/files\/metabo-hpt-18v-to-milwaukee-18v-battery-adapter-01.jpg?v=1787340705","url":"https:\/\/powertoolsadapters.ca\/products\/metabo-hpt-18v-to-milwaukee-18v-battery-adapter","provider":"Power Tools Adapters","version":"1.0","type":"link"}