{"title":"Greenworks 40V Battery Adapters","description":"\u003cp\u003eGreenworks 40V is the garden range — mowers, trimmers, hedge cutters and blowers — where the battery is a large share of what you paid and most people own exactly one. It also spends half the year in a shed doing nothing.\u003c\/p\u003e\n\n\u003cp\u003e%ADAPTERS% here, all in one direction: a 40V pack driving another brand's tool. Running a Greenworks 40V tool from someone else's battery is not something we make an adapter for yet. Worth knowing before you order — 40V is a separate system from Greenworks' own 24V range and the two packs do not interchange, so the adapter you need is chosen by platform, not by brand. Use the finder if you know both ends of the pairing.\u003c\/p\u003e\n","products":[{"product_id":"greenworks-40v-to-milwaukee-18v-battery-adapter","title":"Greenworks 40V to Milwaukee 18V Battery Adapter","description":"\u003cp\u003eUse your Greenworks 40V batteries on Milwaukee M18 cordless tools, without buying into a second battery platform. The battery sits above the tool’s platform — 40V against 18V — so this adapter converts instead of connecting the two directly. Constructed from durable molded ABS with pure copper contacts, for a secure fit and dependable current transfer. It is a cost-effective way to get more from the batteries you have, with no second charger to maintain.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSKU\u003c\/b\u003e PTA-GRE40-MIL18\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFits this battery\u003c\/b\u003e Greenworks 40V (Lithium-Ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery voltage\u003c\/b\u003e 40V\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 60A continuous (100A peak at 18VDC for up to 2 seconds)1080 Watt continuous at 18V nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal wiring\u003c\/b\u003e 6 mm²\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight\u003c\/b\u003e 163 g (5.7 oz \/ 0.36 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 9, 2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy choose this adapter\u003c\/h2\u003e\n\u003cul\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\u003e6 mm² internal wiring, rated for 60A continuous with 100A 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\u003eGreenworks 40V and Milwaukee M18 compatibility\u003c\/h2\u003e\n\u003cp\u003eIt works in one direction only: Greenworks 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\"\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\/greenworks-40v-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F263554007281\"\u003eGreenworks 40V\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 Greenworks 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 Greenworks 40V battery.\u003c\/p\u003e\n\u003ch2\u003eBefore you buy\u003c\/h2\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":48533135982833,"sku":"PTA-GRE40-MIL18","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/8055\/4184\/files\/PhotoNotAvailable_6744dd2c-ace8-4c61-9cc9-a0afba50ef7e.jpg?v=1783650426"},{"product_id":"greenworks-40v-to-dewalt-20v-battery-adapter","title":"Greenworks 40V to DeWalt 20V Battery Adapter","description":"\u003cp\u003eUse your Greenworks 40V batteries on DeWalt 20V MAX cordless tools, without buying into a second battery platform. Your Greenworks 40V battery is 40V and a DeWalt 20V MAX tool expects 20V. The converter holds the output at the tool’s level for as long as the battery lasts. The molded ABS housing keeps it light and hard-wearing, and pure copper contacts keep current delivery steady. This helps you get the most out of your existing battery system while avoiding the cost of another set of batteries and chargers.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSKU\u003c\/b\u003e PTA-GRE40-DWM20\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFits this battery\u003c\/b\u003e Greenworks 40V (Lithium-Ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery voltage\u003c\/b\u003e 40V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRuns these tools\u003c\/b\u003e DeWalt 20V MAX (Lithium-Ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTool voltage\u003c\/b\u003e 20V\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 60A continuous (100A peak at 18VDC for up to 2 seconds)1080 Watt continuous at 18V nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal wiring\u003c\/b\u003e 6 mm²\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight\u003c\/b\u003e 164 g (5.8 oz \/ 0.36 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 9, 2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy choose this adapter\u003c\/h2\u003e\n\u003cul\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\u003e6 mm² internal wiring, rated for 60A continuous with 100A 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\u003eGreenworks 40V and DeWalt 20V MAX compatibility\u003c\/h2\u003e\n\u003cp\u003eIt works in one direction only: Greenworks batteries powering DeWalt tools. For the opposite pairing, see \u003ca href=\"https:\/\/powertoolsadapters.com\/collections\/dewalt-20v-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259847848177\"\u003eadapters that run on DeWalt 20V MAX 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\/greenworks-40v-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F263554007281\"\u003eGreenworks 40V\u003c\/a\u003e platform and that your tool takes \u003ca href=\"https:\/\/powertoolsadapters.com\/collections\/dewalt-20v-battery-adapters?filter.p.m.version2.tool_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259847848177\"\u003eDeWalt 20V MAX\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 Greenworks or DeWalt 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 Greenworks 40V battery.\u003c\/p\u003e\n\u003ch2\u003eBefore you buy\u003c\/h2\u003e\u003cdiv\u003e\n\u003ch3\u003eDeWalt 20V MAX tools\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\nDCV581H Wet-Dry Vacuum: Not compatible\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Power Tools Adapters","offers":[{"title":"Default Title","offer_id":48533136015601,"sku":"PTA-GRE40-DWM20","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/8055\/4184\/files\/PhotoNotAvailable_6744dd2c-ace8-4c61-9cc9-a0afba50ef7e.jpg?v=1783650426"}],"url":"https:\/\/powertoolsadapters.nz\/collections\/greenworks-40v-battery-adapters.oembed","provider":"Power Tools Adapters","version":"1.0","type":"link"}