{"product_id":"stanley-20v-to-hercules-v20-battery-adapter","title":"Stanley V20 to Hercules 20V Battery Adapter","description":"\u003cp\u003eUse your Stanley V20 batteries on Hercules 20V cordless tools, without buying into a second battery platform. Power passes straight through: Stanley V20 and Hercules 20V share the same 20V rating. The molded ABS housing keeps it light and hard-wearing, and pure copper contacts keep current delivery steady. Fewer battery systems in the workshop, on the bench or in the van, and no extra chargers to find room for. It also carries battery protection electronics (BMS) inside.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFits this battery\u003c\/b\u003e Stanley V20 (Lithium-Ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBattery voltage\u003c\/b\u003e 20V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRuns these tools\u003c\/b\u003e Hercules 20V (Lithium-Ion) from Harbor Freight\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 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 125 g (4.4 oz \/ 0.28 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColour\u003c\/b\u003e Red, Yellow\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\u003eBuilt-in BMS protection\u003c\/b\u003e Yes\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 October 5, 2025)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy choose this adapter\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYour Stanley V20 battery and Hercules 20V tools run at the same voltage, so the adapter changes the fitting rather than converting anything.\u003c\/li\u003e\n\u003cli\u003eA Battery Management System inside the adapter cuts power before the battery is drained too far — protection your battery may not have on its own.\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\u003eStanley V20 and Hercules 20V compatibility\u003c\/h2\u003e\n\u003cp\u003eIt works in one direction only: Stanley batteries powering Hercules tools. For the opposite pairing, see \u003ca href=\"https:\/\/powertoolsadapters.com\/collections\/hercules-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259848241393\"\u003eadapters that run on Hercules 20V 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\/stanley-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259848175857\"\u003eStanley V20\u003c\/a\u003e platform and that your tool takes \u003ca href=\"https:\/\/powertoolsadapters.com\/collections\/hercules-battery-adapters?filter.p.m.version2.tool_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259848241393\"\u003eHercules 20V\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 Stanley or Hercules 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 Stanley V20 battery.\u003c\/p\u003e\n\u003ch2\u003eBefore you buy\u003c\/h2\u003e\u003cdiv\u003e\n\u003ch3\u003eHercules 20V tools\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\nHercules Heat Gun: Compatible only with a high-capacity battery of 5Ah or more. It can be operated for short periods of approximately 30 seconds at a time. We are currently working to improve compatibility.\n\u003c\/li\u003e\n\u003cli\u003e\nHercules Band Saw: Not currently compatible. There is no known fix at this time.\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Power Tools Adapters","offers":[{"title":"Default Title","offer_id":51246012727332,"sku":"46995612205297","price":43.63,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0803\/5598\/3396\/files\/Stanley_to_Hercules_01.jpg?v=1786429622","url":"https:\/\/www.layerspecdynamics.com\/products\/stanley-20v-to-hercules-v20-battery-adapter","provider":"LayerSpec Dynamics","version":"1.0","type":"link"}