{"product_id":"dewalt-battery-adapter-18v-to-20v-use-20v-max-batteries-in-18v-tools","title":"DEWALT Battery Adapter 18V to 20V - Use 20V MAX Batteries in 18V Tools","description":"\u003cp\u003eOur review of the DEWALT Battery Adapter 18V to 20V looks at a simple, practical solution for users who want to keep older 18V tools relevant. The bottom line: this adapter is for owners of legacy 18V DEWALT drills, sanders and other tools who already have 20V MAX batteries and want to use them without buying new tools. It converts selected 20V MAX battery sizes to fit most 18V tool platforms, and the biggest reason to buy is straightforward compatibility that extends the life of existing tools.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20V to 18V compatibility:\u003c\/strong\u003e Lets several 20V MAX battery sizes power most 18V DEWALT tools so old tools remain useful.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery size support:\u003c\/strong\u003e Works with 1.5 Ah, 2.0 Ah, 3.0 Ah, 4.0 Ah and 5.0 Ah XR batteries, offering flexibility across common pack capacities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharger requirement:\u003c\/strong\u003e Requires use of a 20V MAX DEWALT charger, so users keep charging within the 20V system for safety and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool protection note:\u003c\/strong\u003e Not to be used with premium batteries in DC970 or DC759 tools, preventing incompatible pairings that could damage tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFLEXVOLT exclusion:\u003c\/strong\u003e Will not work with 20V\/60V FLEXVOLT batteries, avoiding confusion with DEWALT's multi-voltage packs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis adapter is aimed at DIYers and tradespeople who already own a mix of 18V tools and 20V MAX batteries and want a cost-effective way to unify their battery inventory. It is especially useful if a user has several 20V XR packs in the supported capacities and wants to keep older 18V tools in service without buying replacement 20V tools.\u003c\/p\u003e\n\n\u003cp\u003eThose who should look elsewhere include anyone relying on FLEXVOLT packs or owners of tools that require premium batteries specified for DC970 or DC759 tools, since the adapter explicitly excludes those batteries and tool combinations. If you need wide compatibility with every DEWALT battery family, this adapter is not the match.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKeeps older 18V tools useful by allowing selected 20V MAX batteries to be used in place of 18V packs.\u003c\/li\u003e\n\u003cli\u003eSupports a range of common XR battery capacities so users can use what they already own.\u003c\/li\u003e\n\u003cli\u003eClear limitations prevent incompatible pairings with FLEXVOLT and some premium-tool batteries, reducing risk of misuse.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report the adapter can be difficult to remove or feels tight, which can be inconvenient during frequent battery swaps.\u003c\/li\u003e\n\u003cli\u003eDoes not work with FLEXVOLT packs and is not for use with certain premium-tool battery pairings, limiting universal use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eDEWALT Battery Adapter 18V to 20V (DCA1820)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary function\u003c\/td\u003e\n\u003ctd\u003eAllows use of select 20V MAX batteries in most 18V DEWALT tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible battery sizes\u003c\/td\u003e\n\u003ctd\u003e1.5 Ah, 2.0 Ah, 3.0 Ah, 4.0 Ah, 5.0 Ah XR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharger requirement\u003c\/td\u003e\n\u003ctd\u003eRequires 20V MAX DEWALT charger (charger not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncompatible batteries\u003c\/td\u003e\n\u003ctd\u003e20V\/60V FLEXVOLT and premium batteries for DC970 or DC759 tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eAdapter only; charger and batteries sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe DEWALT 18V to 20V adapter is a practical, cost-saving tool for anyone who wants to use existing 20V MAX XR batteries with older 18V DEWALT tools. It is good value for users with supported battery sizes and who do not rely on FLEXVOLT or the excluded premium-tool batteries, though the fit can be snug and removal may be awkward for some.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this adapter work with FLEXVOLT batteries?\u003c\/strong\u003e\u003cbr\u003eNo, the adapter will not work with 20V\/60V FLEXVOLT batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a special charger to use this adapter?\u003c\/strong\u003e\u003cbr\u003eYes, you must use a 20V MAX DEWALT charger; the adapter does not include a charger.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre all 20V DEWALT batteries supported?\u003c\/strong\u003e\u003cbr\u003eNo, only the 1.5 Ah, 2.0 Ah, 3.0 Ah, 4.0 Ah and 5.0 Ah XR batteries are compatible, and premium batteries for DC970 or DC759 tools are excluded.\u003c\/p\u003e","brand":"DEWALT","offers":[{"title":"Default Title","offer_id":48608005783771,"sku":"B016K1UD0E","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/5171Xa_KTOL._AC_SL1000.jpg?v=1778402793","url":"https:\/\/gearmusthave.com\/products\/dewalt-battery-adapter-18v-to-20v-use-20v-max-batteries-in-18v-tools","provider":"GearMustHave","version":"1.0","type":"link"}