Shimano EW-EC300 Di2 Charging Cable 1700mm - Pedal Passion

Shimano EW-EC300 Di2 Charging Cable 1700mm

$53.99 AUD
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Shimano EW-EC300 Di2 Charging Cable 1700mm - Pedal Passion
  • Shimano EW-EC300 Di2 Charging Cable 1700mm - Pedal Passion
Shimano EW-EC300 Di2 Charging Cable 1700mm

Shimano EW-EC300 Di2 Charging Cable 1700mm

$53.99 AUD

The Shimano EW-EC300 Charging Cable is an essential genuine Shimano Di2 service accessory that keeps modern 12-speed Dura-Ace and Ultegra electronic drivetrains charged, reliable and ready for fast road rides, racing, training and long-distance cycling across Brisbane, Queensland and Australia.

EW-EC300 Features

  • Genuine Shimano charging cable for latest 12-speed Di2 road systems
  • Connects directly to compatible Shimano Di2 rear derailleurs for easy on-bike charging
  • Also compatible with selected Shimano power meter cranksets
  • Simple USB Type-A connection for convenient home or workshop charging
  • Essential spare or replacement cable for road bike service, Di2 diagnostics and travel

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Key Features & Technical Specifications

Technical Specifications

  • Product Name: Shimano EW-EC300 Charging Cable
  • Model: EW-EC300
  • Product Type: Di2 charging cable / charging connector
  • Compatibility: Shimano Dura-Ace R9200 Di2, Shimano Ultegra R8100 Di2 and compatible Shimano 12-speed Di2 systems
  • Compatible Rear Derailleurs: Shimano RD-R9250, RD-R8150 and other compatible Shimano 12-speed Di2 rear derailleurs
  • Power Meter Compatibility: Compatible with Shimano FC-R9200-P and selected Shimano power meter cranksets
  • Cable Length: Retailer-listed as 1700mm; Shimano specification may vary by market and commonly lists approximately 1.5m
  • USB Connector: USB Type-A
  • Charging Port Connection: Shimano Di2 rear derailleur charging port / compatible Shimano power meter charging port
  • Colour: Black
  • Wall Plug Included: No, USB wall adaptor not included
  • System Type: Shimano 12-speed Di2 electronic shifting
  • Battery System Supported: Shimano internal Di2 battery systems such as BT-DN300 when used with compatible Di2 rear derailleurs
  • Recommended Use: Road cycling, Di2 charging, electronic drivetrain service, workshop use, travel spare, race-day preparation
  • Compatible Bike Type: Road bikes, aero road bikes, endurance road bikes and performance bikes with Shimano 12-speed Di2 systems
  • Rider Weight Limit: Not applicable

Compatibility Notes

  • Designed for Shimano’s latest SD300 12-speed Di2 road systems.
  • Not intended as a direct replacement charger for older 11-speed Di2 systems that use previous-generation charging interfaces.
  • Requires a compatible Shimano Di2 rear derailleur or Shimano power meter charging port.
  • Use with a suitable USB power adaptor or USB charging port.
Notable Tech, Materials & Construction

Genuine Shimano Di2 Charging Interface

The EW-EC300 is designed specifically for Shimano’s modern Di2 electronic shifting ecosystem, giving riders a secure and reliable connection for charging compatible Dura-Ace and Ultegra 12-speed systems.

Direct Rear Derailleur Charging

Unlike older Di2 setups that often used separate junction boxes or different charging ports, current Shimano 12-speed road systems charge through the rear derailleur. This makes the charging process simple, clean and convenient.

USB Type-A Connection

The cable uses a USB Type-A connector, making it easy to plug into common USB wall chargers, workshop charging stations, laptop ports or travel adaptors.

Shimano Power Meter Compatibility

The EW-EC300 can also be used with selected Shimano power meter cranksets, making it particularly useful for riders running a complete Shimano Dura-Ace or Ultegra electronic drivetrain and power meter setup.

Practical Workshop and Travel Design

The cable is lightweight, compact and easy to store in a workshop drawer, travel case or race-day tool kit. For riders who rely on Di2, having a spare charging cable is a smart way to avoid missed rides caused by a flat battery.
Size, Fit, Geometry & Measurements

Cable Length

  • Retailer-listed length: 1700mm
  • Manufacturer listings may vary by region and may specify approximately 1.5m

Connector Type

  • USB Type-A on one end
  • Shimano Di2 / power meter charging connector on the other end

Fitment Use

Designed to connect to:

  • Compatible Shimano Di2 rear derailleur charging ports
  • Compatible Shimano Dura-Ace and Ultegra power meter cranksets
Who it is best suited for and where it is best suited

Best Suited For

  • Shimano Dura-Ace R9200 Di2 riders
  • Shimano Ultegra R8100 Di2 riders
  • Riders with Shimano FC-R9200-P power meters
  • Cyclists replacing a lost or damaged Di2 charger cable
  • Riders wanting a spare Di2 charging cable for travel or racing
Product Care & Warranty Info

Product Care

  • Store the cable in a dry location when not in use.
  • Avoid bending the cable sharply or crushing it in a tool bag.
  • Keep connector ends clean and free from dirt, sweat and moisture.
  • Do not pull the cable out by the wire; remove it by holding the connector body.
  • Avoid charging near excessive heat or water exposure.
  • Use a suitable USB power source.
  • Inspect the cable if charging becomes intermittent.
  • Keep it with your Di2 service tools or travel kit so it is easy to find before events.

Warranty Information

  • Covered by Shimano manufacturer warranty against defects in materials and workmanship.
  • Warranty generally excludes cable damage from misuse, crushing, pulling, water ingress, incorrect charging equipment or general wear.
  • For best results, use only with compatible Shimano Di2 and Shimano power meter systems.
Industry & Rider Feedback. A few Comparison Options

BikeRadar’s August 2021 coverage of Shimano Dura-Ace R9200 highlighted the move to Shimano’s updated 12-speed Di2 platform, including improved drivetrain integration and a cleaner electronic setup. Gran Fondo Cycling Magazine’s August 2021 first-ride coverage also noted the refined Di2 system layout, wireless cockpit controls and modern charging approach. FeedTheHabit’s May 2023 long-term review of Dura-Ace R9200 Di2 praised the system’s clean integration, precise shifting and ease of use during regular riding.
Featured Reviews from Pedal Passion Community
  • 5 stars: 13 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Cliente d.A.
Excelente

Funciona bien

R
R

5 stars. It works properly to recharge my derailleur!

A
Anthony J.
Great product

Perfect replacement for lost charging cable

V
Vic M.
Works

Pricey but works great

R
RangerMike
Works well

Great replacement for my DI2 …. I put mine up somewhere and have no idea where it is. It’s always good to have a back up.

b
bapeder
Fast shipping As described.

Fast shipping As described.

J
Joe F.
Indispensable, and now I've got a spare

What I liked about the Di2 charging cable is that it's made by the manufacturer of this line of bike parts (Shimano), it fits perfectly, it's warranted, and it works just fine. No problems with the item, the sale, delivery, installation, or operation. All were fine.I gave it 5 stars because it does exactly what it should do, and it arrived lickety-split, well packed. But I can't help griping about the cost. This issue is not an Amazon matter; Amazon charges what everyone who sells these charges, no doubt at Shimano's insistence. At nearly $50, this thing seems overpriced by a factor of about 3x.But, as noted, it's here, it works, it was easy to acquire, and it's my spare.

a
ap
It works

Charges as it’s supposed to. Glad I now have a backup.

M
M. S.
Just what I needed

It’s OEM Shimano. Needed it on vacation as I forgot to charge power meter. Shipped quickly. Now I have a cable I can leave here.

A
Ahmed

New and original from the box 📦

R
Rosa S.
Good

Good quality

s
shadow
Shimano Di2 charging wire

It works!

G
Geovanny B.
12 speed Di2 charger

Works great with any USB charger box watt.

Shimano

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