{"product_id":"for-shimano-ew-ec300-electronic-rear-derailleur-magnetic-charging-cable-4-pin-di2-systems-compatible-with-12-speed-r9270-r9250-r8170-r8150-r7170","title":"Shimano EW-EC300 Di2 Magnetic Charging Cable USB-A\/USB-C","description":"\u003cdiv class=\"godlol-cro-description\" data-codex=\"ew-ec300-page-optimization-20260526\"\u003e\n  \u003ch2\u003eShimano EW-EC300 Di2 Magnetic Charging Cable\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eA 2-in-1 USB-A and USB-C magnetic charging cable for supported Shimano 12-speed Di2 bikes that use the EW-EC300 rear-derailleur charging interface.\u003c\/strong\u003e Keep one at home, one near the indoor trainer, or one in your race\/travel kit so a low Di2 battery does not stop a ride.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDual USB-A + USB-C input:\u003c\/strong\u003e works with common wall chargers, power banks, laptops, and travel adapters without needing a separate cable type.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEW-EC300 magnetic connector:\u003c\/strong\u003e 4-pin magnetic charging interface for compatible Shimano 12-speed Di2 rear derailleurs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMade for modern Di2 groups:\u003c\/strong\u003e intended for bikes in the R9270, R9250, R8170, R8150, and R7170 model families when they use the EW-EC300 charging port.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLong 2000mm reach:\u003c\/strong\u003e enough length for workshop benches, wall outlets, trainer setups, travel cases, and awkward bike storage spots.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStable 5V\/2A charging:\u003c\/strong\u003e built for steady charging with protection against overheating, overcharging, and short circuits.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCompatibility checklist before ordering\u003c\/h3\u003e\n  \u003ctable\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eCheck\u003c\/th\u003e\n\u003cth\u003eWhat to confirm\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCharging port\u003c\/td\u003e\n\u003ctd\u003eYour bike should charge through an EW-EC300-style magnetic rear-derailleur port.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDi2 generation\u003c\/td\u003e\n\u003ctd\u003eBest fit for supported Shimano 12-speed Di2 road systems, including Dura-Ace, Ultegra, and 105 Di2 model families listed above.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eConnector shape\u003c\/td\u003e\n\u003ctd\u003eCompare this cable's magnetic 4-pin connector with your current Shimano charging cable before buying.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower source\u003c\/td\u003e\n\u003ctd\u003eUse a standard 5V USB charger, power bank, laptop, or wall adapter through USB-A or USB-C.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNot for\u003c\/td\u003e\n\u003ctd\u003eOlder Di2 systems or any bike that uses a different charging interface. It is not a universal Di2 charger.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eWhy riders keep a spare Di2 charging cable\u003c\/h3\u003e\n  \u003cp\u003eDi2 batteries usually last a long time, which makes the charger easy to misplace. A dedicated spare cable in your tool roll, trainer area, or bike travel case is cheap insurance before race weekends, bike trips, and winter indoor blocks.\u003c\/p\u003e\n\n  \u003ch3\u003eBest use cases\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHome workshop:\u003c\/strong\u003e leave a cable on the bench for quick top-ups and maintenance checks.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIndoor trainer:\u003c\/strong\u003e keep charging close to the trainer so the bike is ready before structured workouts.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTravel and race bags:\u003c\/strong\u003e pack a compact charging setup with your head unit, lights, camera, and phone cables.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBackup replacement:\u003c\/strong\u003e useful if your original EW-EC300 cable is lost, damaged, or kept in another location.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat is included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x 2-in-1 USB-A \/ USB-C magnetic charging cable for Shimano EW-EC300-style Di2 charging.\u003c\/li\u003e\n    \u003cli\u003eCable length: 2000mm \/ 78.74 in.\u003c\/li\u003e\n    \u003cli\u003eConnector size: about 10mm \/ 0.4 in.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFAQ\u003c\/h3\u003e\n  \u003ch4\u003eIs this an original Shimano EW-EC300 cable?\u003c\/h4\u003e\n  \u003cp\u003eNo. This is a GodLOL-compatible replacement charging cable for riders who need an EW-EC300-style Di2 charging spare.\u003c\/p\u003e\n\n  \u003ch4\u003eDoes it work with every Shimano Di2 bike?\u003c\/h4\u003e\n  \u003cp\u003eNo. Shimano Di2 charging interfaces vary by generation. Please match the connector shape and charging port on your bike before ordering.\u003c\/p\u003e\n\n  \u003ch4\u003eCan I use either USB-A or USB-C?\u003c\/h4\u003e\n  \u003cp\u003eYes. The cable has both USB-A and USB-C input options, so it can connect to many common chargers and power banks.\u003c\/p\u003e\n\n  \u003ch4\u003eWhich model searches is this page built for?\u003c\/h4\u003e\n  \u003cp\u003eCommon search terms include Shimano EW-EC300 charging cable, Di2 charging cable, Shimano Di2 charger cable, R9270 charger, R9250 charger, R8170 charger, R8150 charger, and R7170 charger.\u003c\/p\u003e\n\n  \u003ch4\u003eNeed a smaller travel adapter instead?\u003c\/h4\u003e\n  \u003cp\u003eFor a compact adapter-style option, compare the \u003ca href=\"\/fr\/products\/shimano-di2-charger-adapter\"\u003eShimano Di2 USB-C Adapter EW-EC300 Style\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"GodLOL Cycling Tour","offers":[{"title":"Default Title","offer_id":50004818788642,"sku":"10721","price":27.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/1732\/3554\/files\/8ea79e17491096ff91dd19bf3004ab4f.jpg?v=1779792311","url":"https:\/\/alltoo.cc\/fr\/products\/for-shimano-ew-ec300-electronic-rear-derailleur-magnetic-charging-cable-4-pin-di2-systems-compatible-with-12-speed-r9270-r9250-r8170-r8150-r7170","provider":"ALLTOO\u0026GodLOL Cycling Tour","version":"1.0","type":"link"}