{"product_id":"festool-18v-5-0ah-highpower-battery-578939","title":"Festool 18V 5.0Ah HighPower Battery (578939)","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\/voltage.svg\" alt=\"voltage\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003e18V Platform Power\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe Festool BP 18 Li 5,0 HP-ASI HighPower battery pack is built for Festool 18V cordless tools, so it fits into an established system instead of being a one-off battery purchase.\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\/battery-capacity.svg\" alt=\"battery-capacity\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003e5.0Ah Capacity\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe 5.0Ah rating gives you a solid balance of runtime and size for day-to-day cordless work, especially when you need one battery that can move across multiple tools.\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\/connectivity.svg\" alt=\"connectivity\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eBluetooth Equipped\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eBluetooth is built into the battery pack, adding another layer of system integration for users already invested in Festool cordless equipment and charging accessories.\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\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003eThe \u003cstrong\u003eFestool BP 18 Li 5,0 HP-ASI HighPower battery pack\u003c\/strong\u003e is an 18V cordless tool battery for the Festool system, model number \u003cstrong\u003e578519\u003c\/strong\u003e. This is a battery pack designed for powering Festool 18V cordless tools. If you need one battery that covers a wide range of everyday drilling, fastening, cutting, and jobsite tasks, this one is aimed at that middle ground where runtime, tool balance, and system fit all matter.\u003c\/p\u003e\n    \u003cp\u003eWhat stands out right away is the combination of \u003cstrong\u003e18V output\u003c\/strong\u003e and \u003cstrong\u003e5.0Ah capacity\u003c\/strong\u003e. In practical terms, that means this pack is set up for general-use cordless work instead of being a tiny low-capacity option for light duty only or an oversized battery meant purely for maximum runtime. For contractors and serious DIY users working across several tools in the same platform, that balance is usually the sweet spot.\u003c\/p\u003e\n    \u003cp\u003eFestool positions this battery for \u003cstrong\u003eall applications and 18V devices\u003c\/strong\u003e with a few specific exceptions. That matters because battery compatibility is what makes a cordless platform worth buying into in the first place. Instead of matching a different pack to every tool, the Festool BP 18 Li 5,0 HP-ASI HighPower battery pack is meant to be the go-to battery for broad use across the 18V lineup.\u003c\/p\u003e\n    \u003cp\u003eThe housing shown here is clearly marked \u003cstrong\u003eAIRSTREAM\u003c\/strong\u003e, which ties it into Festool's battery and charging ecosystem. On the job, that means this is not just a power source sitting in a tool. It is part of a broader cordless setup built around shared batteries and chargers, which is exactly what most users want when they are trying to keep downtime low and keep chargers, packs, and tools organized.\u003c\/p\u003e\n    \u003cp\u003eThe battery pack also shows \u003cstrong\u003eBluetooth\u003c\/strong\u003e integration on the housing. That is useful for users already working inside Festool's connected accessory and cordless environment, and it adds more value than a basic battery that only delivers power. If you are already invested in Festool cordless tools, system-friendly details like this tend to matter more over time than they do on day one.\u003c\/p\u003e\n    \u003cp\u003eCompatibility is the key buying point here, and it is worth being specific. This battery is described for Festool 18V devices \u003cstrong\u003eexcept ETSC 125, RTSC 400, DTSC 400, and CTC SYS\u003c\/strong\u003e. That kind of exception list is exactly the information buyers need before adding another battery to the cart, especially if they are filling gaps in an existing kit rather than starting fresh.\u003c\/p\u003e\n    \u003cp\u003eWho should buy it? This is a smart fit for Festool users who want a dependable everyday battery for the 18V platform without overcomplicating things. It makes the most sense for people running multiple Festool cordless tools and wanting a battery pack that is versatile enough to move from tool to tool while still giving useful runtime. If your work is built around the Festool 18V platform, this is the kind of battery pack that earns its keep fast.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt for Everyday Cordless Work\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\/4014549473313_2.jpg\" alt=\"Festool BP 18 Li 5,0 HP-ASI HighPower battery pack charging on a Festool charger on a work surface while a user works with a Festool cordless tool in the background\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis battery pack is aimed at users who actually rotate batteries through tools all day. The point is simple: keep your 18V Festool cordless setup moving with a pack sized for broad, real-world use.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eDesigned for Festool 18V tools\u003c\/li\u003e\n          \u003cli\u003e5.0Ah capacity balances runtime and manageable size\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-benefits-2\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eSystem-Focused Battery Design\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\/4014549473313_1.jpg\" alt=\"Festool BP 18 Li 5,0 HP-ASI HighPower battery pack product view showing 18V, 5.0Ah, Bluetooth, and AIRSTREAM markings on the battery housing\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe markings on the pack tell you what matters before you ever click into a spec table. This battery is part of the Festool cordless system, with platform, capacity, and connectivity called out clearly on the housing.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003e18V battery platform\u003c\/li\u003e\n          \u003cli\u003eBluetooth-equipped battery pack with AIRSTREAM branding\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-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 Capacity\u003c\/th\u003e\n        \u003ctd\u003e5.0 Ah\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBattery Type\u003c\/th\u003e\n        \u003ctd\u003eLi-Ion HighPower battery pack\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eConnectivity\u003c\/th\u003e\n        \u003ctd\u003eBluetooth\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eCharging System\u003c\/th\u003e\n        \u003ctd\u003eAIRSTREAM\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eProduct Type\u003c\/th\u003e\n        \u003ctd\u003eCordless tool battery pack\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=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eBattery Platform\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eDesigned for Festool 18V 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\/charger-included.svg\" alt=\"charger-included\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eCharging System\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003ePart of Festool battery and charging technology and marked AIRSTREAM on the battery housing.\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=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eKnown Exceptions\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eNot for ETSC 125, RTSC 400, DTSC 400, or CTC SYS.\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-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 BP 18 Li 5,0 HP-ASI HighPower battery pack: the right kind of everyday battery\u003c\/h3\u003e\n    \u003cp\u003eThis is the kind of battery pack that makes the most sense for guys already running Festool 18V tools and wanting one dependable pack that can cover a lot of ground.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Festool users building out or expanding an 18V cordless setup for regular jobsite or shop work.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e It gives you 18V platform compatibility, 5.0Ah capacity, Bluetooth integration, and AIRSTREAM system support in one battery.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e Check your tool list before you buy. Festool calls out a few exceptions, so this is broad-coverage compatibility, not universal compatibility across every single cordless product they make.\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 lithium-ion HighPower battery pack for Festool 18V cordless tools.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat is the battery capacity?\u003c\/strong\u003e This battery pack is rated at 5.0Ah.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIs it compatible with all Festool 18V tools?\u003c\/strong\u003e It is described for Festool 18V devices, except ETSC 125, RTSC 400, DTSC 400, and CTC SYS.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDoes the battery support Bluetooth?\u003c\/strong\u003e Yes. Bluetooth is shown on the battery housing.\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":53200252535078,"sku":"578939","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/down_bs_akkubp18li50ahHPASI_578519_a_02a.jpg?v=1778782715","url":"https:\/\/www.toolnut.com\/products\/festool-18v-5-0ah-highpower-battery-578939","provider":"Tool Nut","version":"1.0","type":"link"}