{"product_id":"duotone-foil-assist-battery-7a-1pcs","title":"Duotone Foil Assist Battery 7A (1Pcs)","description":"\u003cp\u003eIf you already own a Duotone Foil Assist setup and need a replacement or extra single battery, this is the correct part. The Duotone Foil Assist Battery 7A (1Pcs) is one original 7Ah high-voltage battery built for the 2026 Duotone Foil Assist battery ecosystem.\u003c\/p\u003e\n\u003cp\u003eThe important point before you buy is simple: this is \u003cstrong\u003eone battery only\u003c\/strong\u003e. The Foil Assist system needs \u003cstrong\u003etwo batteries connected at the same time\u003c\/strong\u003e to operate, so this product is best suited to riders replacing one damaged battery, completing an existing pair, or keeping a spare ready for travel and backup.\u003c\/p\u003e\n\u003ch3\u003eWhere This Sits in the Range\u003c\/h3\u003e\n\u003cp\u003eThis sits firmly in the spares and replacement side of the Duotone electric range rather than the “start here” part of the system.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChoose this if you need \u003cstrong\u003eone replacement battery\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eChoose the \u003ca href=\"https:\/\/www.thesupco.com\/products\/dte-battery-7a-set-2pcs-2026\"\u003eDuotone Foil Assist Battery 7A Set (2Pcs)\u003c\/a\u003e if you need a \u003cstrong\u003ecomplete working pair\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eChoose the \u003ca href=\"https:\/\/www.thesupco.com\/products\/duotone-foil-assist-set-al-2026\"\u003eDuotone Foil Assist Set AL \u003c\/a\u003eif you are \u003cstrong\u003ebuilding a system from scratch\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eChoose the \u003ca href=\"https:\/\/www.thesupco.com\/products\/dte-eharness-set-2026\"\u003eDuotone eHarness Set\u003c\/a\u003e if you need the \u003cstrong\u003ewearable harness and battery box\u003c\/strong\u003e rather than the battery itself.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose This Battery?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Duotone replacement part\u003c\/strong\u003e for the current Foil Assist battery platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal if one battery has been lost or damaged\u003c\/strong\u003e and you do not want to buy a full pair again.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUseful as part of a spare battery rotation\u003c\/strong\u003e for longer days, travel or shared use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact travel-friendly format\u003c\/strong\u003e with each battery sitting just under the common 160Wh airline threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple charge-status display\u003c\/strong\u003e thanks to the built-in button and LED indicators.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDuotone Foil Assist Battery 7A (1Pcs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDuotone Foil Assist \/ Duotone Cruise battery ecosystem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiPo \/ high-voltage lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnergy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e159.6Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 1kg \/ 2.2lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical assist runtime\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 30–60 minutes per working pair, depending on rider weight, foil efficiency, board size, speed setting and conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImportant note\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo batteries are required to operate the system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Duotone Foil Assist Battery 7A single battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eExplore the Range\u003c\/h3\u003e\n\u003cp\u003eIf you need a complete working pair, the natural step up is the \u003ca href=\"https:\/\/www.thesupco.com\/products\/dte-battery-7a-set-2pcs-2026\"\u003eDuotone Foil Assist Battery 7A Set (2Pcs)\u003c\/a\u003e. If you are starting from zero and need the full mast, motor and control system, look at the \u003ca href=\"https:\/\/www.thesupco.com\/products\/duotone-foil-assist-set-al-2026\"\u003eDuotone Foil Assist Set AL\u003c\/a\u003e. If you need the wearable battery-carrying part of the system, the \u003ca href=\"https:\/\/www.thesupco.com\/products\/dte-eharness-set-2026\"\u003eDuotone eHarness Set 2026\u003c\/a\u003e is the correct match. For neater storage and transport, add the \u003ca href=\"https:\/\/www.thesupco.com\/products\/dte-battery-bag-2026\"\u003eDuotone Foil Assist Battery Bag\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eHelpful Reading \u0026amp; Buying Advice\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thesupco.com\/blogs\/news\/duotone-foil-assist-vs-foil-drive-gen-2\"\u003eDuotone Foil Assist vs Foil Drive Gen 2\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thesupco.com\/blogs\/news\/foil-assist-explained-foil-drive-vs-duotone-vs-waydoo-the-sup-co\"\u003eFoil Assist Explained: Foil Drive vs Duotone vs Waydoo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thesupco.com\/blogs\/news\/e-foiling-guide-uk-waydoo-vs-foil-drive-vs-duotone-foil-assist\"\u003eE-Foiling Guide UK: Waydoo vs Foil Drive vs Duotone Foil Assist\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs one battery enough to run the Duotone Foil Assist?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eNo. You need two batteries connected at the same time for the Foil Assist system to operate. This product is a single replacement battery, not a complete working set.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWho should buy this instead of the 2-piece battery set?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eBuy this single battery if you are replacing one damaged or missing battery, or if you already have an existing battery setup and only need one extra. If you need a full usable pair, the 2-piece set is the better buy.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan I travel by air with this battery?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eEach battery is rated at 159.6Wh, which sits just under the usual 160Wh airline threshold. That said, airline rules can vary, so you should always check the latest policy and get approval before travelling.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this compatible with Duotone Cruise as well as Foil Assist?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. This battery format sits within Duotone’s electric foil ecosystem and is used across current Foil Assist and Cruise-related setups using the same 7A battery platform.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eAnything else I should know before ordering?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes — this is a lithium battery product, so shipping can sometimes take longer and delivery options may be more limited than for standard accessories. It also makes sense to store batteries carefully and follow Duotone’s charging and storage guidance.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Duotone Foiling \u0026 Electric","offers":[{"title":"C99:random \/ 7A","offer_id":52952620171597,"sku":"9010583279640","price":383.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/8381\/8829\/files\/Battery.png?v=1765295470","url":"https:\/\/www.thesupco.com\/products\/duotone-foil-assist-battery-7a-1pcs","provider":"The SUP Company","version":"1.0","type":"link"}