{"product_id":"festool-sys-18v-4-0ah-tabless-bluetooth-battery-4-pack-and-dual-charger-combo-kit-in-systainer-578946","title":"Festool SYS 18V 4.0Ah Tabless Bluetooth Battery 4-Pack and Dual Charger Combo Kit in Systainer (578946)","description":"\u003csection data-aplus\u003e\n  \u003cdetails id=\"product-features\" class=\"acc\" open\u003e\n    \u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"features\"\u003e\n        \u003cdiv class=\"card\"\u003e\n          \u003cdiv class=\"card-inside\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/batteries-included.svg\" alt=\"batteries-included\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eFour Batteries Ready\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eYou get four Festool 18-volt tabless battery packs in one setup, which makes this a practical choice for crews rotating multiple cordless tools through the day.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"card\"\u003e\n          \u003cdiv class=\"card-inside\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/charger-included.svg\" alt=\"charger-included\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eDual Charging Setup\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe included TCL 6 DUO charger handles two batteries at once, so you spend less time waiting and more time keeping tools in rotation.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"card\"\u003e\n          \u003cdiv class=\"card-inside\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/power-source.svg\" alt=\"power-source\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eFestool 18V Platform\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe Festool SYS 18V 4xTBX4\/TCL6DUO energy set is built for Festool 18-volt cordless tools, giving you a solid power foundation instead of piecing a system together later.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-overview\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\" data-product-summary\u003e\n      \u003cp\u003eThe Festool SYS 18V 4xTBX4\/TCL6DUO Energy Set is a battery and charging kit built around the Festool 18-volt cordless platform. This is an 18-volt battery and charger set designed for powering Festool cordless tools across a wide range of jobsite applications. Model number 578823. If you are buying into Festool cordless gear or need more batteries on hand to keep work moving, this set gives you a complete starting point instead of adding pieces one at a time.\u003c\/p\u003e\n      \u003cp\u003eWhat matters here is the setup. You are getting four tabless battery packs, a dual charger, and Systainer storage in one package. That means more runtime in rotation, faster turnaround between charges, and cleaner organization in the truck or shop. For users running multiple tools in a day, this kind of kit makes a real difference because dead batteries stop work faster than almost anything else.\u003c\/p\u003e\n      \u003cp\u003eFestool positions this energy set for all applications and 18-volt devices, with an emphasis on maximum power while keeping weight down. That is the real point of the tabless battery pack design in this kit. You are not just stocking up on batteries. You are building a cordless setup that aims to deliver strong output without loading the tool down more than necessary.\u003c\/p\u003e\n      \u003cp\u003eThe included TCL 6 DUO charger also matters more than a basic single-bay charger. A dual charger is the kind of upgrade that pays off once you have more than one battery in the mix, especially if two people are sharing tools or one user is alternating between drilling, cutting, and cleanup tools through the day. Instead of babysitting charge cycles, you can keep multiple packs turning over with less downtime.\u003c\/p\u003e\n      \u003cp\u003eFrom a jobsite practicality standpoint, the Systainer is a big part of the appeal. Festool users tend to care about storage because loose batteries and chargers disappear fast, get buried in gang boxes, or take a beating in transit. Keeping the full charging setup in one case makes it easier to store, transport, and grab when you are moving between jobs.\u003c\/p\u003e\n      \u003cp\u003eCompatibility is broad within the Festool 18-volt cordless range, but Festool specifically calls out exceptions: ETSC 125, RTSC 400, and DTSC 400. That is important if you are buying this set for finish sanding tools, because it is not a universal fit across every 18-volt product carrying the brand. Outside of those listed exceptions, this set is intended to support Festool 18-volt devices across general use.\u003c\/p\u003e\n      \u003cp\u003eWho should buy it? This kit makes the most sense for tradespeople already running Festool cordless tools, new users building out a platform properly from the start, and shop owners who want extra battery capacity organized in one place. If you only need a single spare battery, this is more than you need. If you are trying to keep several tools ready to go, this is the smarter buy.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eKeep More Tools in Rotation\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"row\"\u003e\n        \u003cdiv class=\"img\"\u003e\n          \u003cimg src=\"https:\/\/cdn.anglera.com\/assets\/74d6ed76-fe0d-4d23-a9db-1f8749ca9ef2\/4014549474310_1.jpg\" alt=\"Festool SYS 18V 4xTBX4\/TCL6DUO Energy Set with four 18-volt battery packs, dual charger, and Systainer case arranged for cordless tool charging and storage in a workshop setup\" class=\"tnblock-img\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"copy\"\u003e\n          \u003cp\u003eThis setup is about workflow. Four batteries and a dual charger give you a better shot at staying productive through the day, whether you are running one tool hard or moving between several cordless tools on the same platform.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003eIncludes four Festool 18-volt tabless battery packs\u003c\/li\u003e\n            \u003cli\u003eIncludes TCL 6 DUO dual charger for charging two batteries at once\u003c\/li\u003e\n            \u003cli\u003eSystainer storage keeps batteries and charger together between jobs\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-whats-included\" class=\"acc\" open\u003e\n    \u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"tnincluded-wrapper\"\u003e\n        \u003cul\u003e\n          \u003cli\u003e(4) Festool 18V tabless battery packs\u003c\/li\u003e\n          \u003cli\u003e(1) Festool TCL 6 DUO dual charger\u003c\/li\u003e\n          \u003cli\u003e(1) Festool Systainer\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\n    \u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003ctable class=\"aplusspecs\"\u003e\n        \u003ctr\u003e\n          \u003cth\u003eVoltage (V)\u003c\/th\u003e\n          \u003ctd\u003e18 V\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBattery Quantity\u003c\/th\u003e\n          \u003ctd\u003e4\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBattery Type\u003c\/th\u003e\n          \u003ctd\u003eTabless battery pack\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eCharger Included\u003c\/th\u003e\n          \u003ctd\u003eTCL 6 DUO dual charger\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eStorage Included\u003c\/th\u003e\n          \u003ctd\u003eSystainer\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eDesigned For\u003c\/th\u003e\n          \u003ctd\u003eFestool 18-volt devices\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-compatibility\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"compat-list\"\u003e\n        \u003cdiv class=\"compat-row\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/voltage.svg\" alt=\"voltage\" class=\"aplusicon\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eBattery Platform\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eDesigned for Festool 18-volt cordless devices.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"compat-row\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"aplusicon\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eKnown Exceptions\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eFestool lists ETSC 125, RTSC 400, and DTSC 400 as exceptions.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"tags\"\u003e\n        \u003cspan class=\"tag\"\u003eFestool cordless platform users\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eGeneral Contracting\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eCarpentry\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eShop setup\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eMulti-tool battery rotation\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-pro-tips\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003ePro Tip\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"tip-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"aplusicon\"\u003e\n        \u003cp class=\"tip-text\"\u003eIf you are running several Festool cordless tools in a day, keep two packs on the charger and two in service. That gives the TCL 6 DUO charger a steady cycle and helps this energy set do what it is really meant to do: keep work moving instead of waiting on power.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n      \u003ch3\u003eFestool SYS 18V 4xTBX4\/TCL6DUO Energy Set for Serious 18V Users\u003c\/h3\u003e\n      \u003cp\u003eThis is the kind of buy that makes sense when you are actually using a cordless platform hard and do not want battery management slowing you down.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Pros and committed users running multiple Festool 18-volt tools who want more batteries, faster charging, and cleaner storage in one package.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e Four tabless battery packs plus the TCL 6 DUO charger is a practical setup, not a starter add-on. The Systainer keeps the whole system organized instead of turning it into a pile of batteries and cords.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is aimed at the Festool 18-volt system, but it is not for every tool in that range. Festool specifically excludes ETSC 125, RTSC 400, and DTSC 400, so check your lineup before you pull the trigger.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat kind of product is this?\u003c\/strong\u003e It is a Festool battery and charging kit for the Festool 18-volt cordless platform.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIs this designed for all Festool 18-volt tools?\u003c\/strong\u003e Festool describes it as being for all 18-volt devices, but specifically lists ETSC 125, RTSC 400, and DTSC 400 as exceptions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDoes it include a charger?\u003c\/strong\u003e Yes. The set includes a TCL 6 DUO dual charger.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHow many batteries are included?\u003c\/strong\u003e The set includes four 18-volt tabless battery packs.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e","brand":"Festool","offers":[{"title":"Default Title","offer_id":53200251945254,"sku":"578946","price":378.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/down_bs_energyset4xTBX4_578823_sod_01a.jpg?v=1778779368","url":"https:\/\/www.toolnut.com\/products\/festool-sys-18v-4-0ah-tabless-bluetooth-battery-4-pack-and-dual-charger-combo-kit-in-systainer-578946","provider":"Tool Nut","version":"1.0","type":"link"}