{"product_id":"shimano-bt-dn300-built-in-di2-battery-internal-3-port","title":"Shimano BT‑DN300 Built‑In Di2 Battery (Internal, 3 Port)","description":"\u003cp data-start=\"290\" data-end=\"738\"\u003ePower your Shimano Di2 12-speed groupset with the BT‑DN300 internal battery — the next-generation upgrade for R8100 Ultegra and R9200 Dura‑Ace systems. Slim and compact, it's designed to be mounted inside seat posts or downtubes for a fully integrated, clean electronic shifting setup. With three SD300 ports, this battery supports multiple wired connections and future expansions like rear derailleur, bar-end junctions, or additional split wires.\u003c\/p\u003e\n\u003cp data-start=\"740\" data-end=\"757\"\u003e\u003cstrong data-start=\"740\" data-end=\"757\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"758\" data-end=\"1158\"\u003e\n\u003cli data-start=\"758\" data-end=\"830\"\u003e\n\u003cp data-start=\"760\" data-end=\"830\"\u003eBuilt-in internal Di2 battery compatible with R8100\/R9200 and beyond\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"831\" data-end=\"908\"\u003e\n\u003cp data-start=\"833\" data-end=\"908\"\u003eThree ports for SD300 wiring (supports redundancy or multiple components)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"909\" data-end=\"973\"\u003e\n\u003cp data-start=\"911\" data-end=\"973\"\u003eSlim profile easily fits inside seat posts or frame cavities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"974\" data-end=\"1043\"\u003e\n\u003cp data-start=\"976\" data-end=\"1043\"\u003eWaterproof and durable, designed for elite-level shifting systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1044\" data-end=\"1073\"\u003e\n\u003cp data-start=\"1046\" data-end=\"1073\"\u003eApproximate weight: ~52 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1074\" data-end=\"1158\"\u003e\n\u003cp data-start=\"1076\" data-end=\"1158\"\u003eUpgraded from earlier BT‑DN110 with no external connectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Squarebox Cycles","offers":[{"title":"Default Title","offer_id":51865192333585,"sku":"4550170894733","price":228.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0938\/0996\/7377\/files\/alphacycling_shi-4550170894733.jpg?v=1753979503","url":"https:\/\/squareboxcycles.mom\/products\/shimano-bt-dn300-built-in-di2-battery-internal-3-port","provider":"Squarebox Cycles","version":"1.0","type":"link"}