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Item #:
181743228
for Shimano DI2 EC300 USB-C Charger Adapter | 4-Pin to Type-C Converter for 12-Speed Electronic Rear Derailleurs Charger Cable| Compact Emergency
Item #:
181743228
BND 37
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
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Order now and get it around Wednesday, August 19
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Stay powered up effortlessly with our compact Type-C adapter for Shimano DI2 systems—never get stranded with a dead electronic derailleur!
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What Stands Out
Compact Design
The Shimano DI2 EC300's compact size makes it a portable charging solution, easily fitting in bags or pockets, ensuring cyclists can quickly charge their electronic derailleurs anytime, anywhere.
USB-C Compatibility
Equipped with a USB-C connection, this adapter offers universality and convenience, allowing users to charge various devices with modern charging technology while ensuring compatibility with 12-speed electronic systems.
Versatile Use
Designed for both road and mountain bikes, this charging cable meets the needs of diverse cyclists, ensuring they can keep their electronic components powered during any ride or adventure.
Product Details
| Brand Name | alltoo |
| Manufacturer | ALLTOO |
| Included Components | 1 X Charger Adapter |
| Item Weight | 30 Grams |
| Color | BLACK |
| Material Type | Plastic |
| Brand | alltoo |
| Material | Plastic |
Who Should Buy?
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Road Cyclists
Ideal for road cyclists utilizing Shimano's DI2 electronic shifting system needing efficient recharging capabilities.
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Mountain Bikers
Great for mountain bikers who use 12-speed electronic derailleurs and require a compact charging solution on trails.
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Traveling Cyclists
Perfect for cyclists who travel frequently and need a lightweight, emergency charging cable for on-the-go power.
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Basic Gear Shifters
Not suitable for cyclists using traditional mechanical gear systems as they do not require electronic charging.
Product Description
for Shimano DI2 EC300 USB-C Charger Adapter | 4-Pin to Type-C Converter for 12-Speed Electronic Rear Derailleurs Charger Cable| Compact Emergency Bike Charging Cable for Road/Mountain Bikes
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Is this adapter compatible with all Shimano derailleur systems?
Answer: No, it is specifically designed for Shimano 12-speed EW-EC300 and DI2 systems (R9200/R8100/R7100 series). -
Question:
Can I use my phone charger to charge my DI2 system?
Answer: Yes, any Type-C power source, including phone chargers and portable batteries, can be used. -
Question:
Will this adapter work with other brands of bikes?
Answer: This adapter is specifically designed for Shimano products and may not be compatible with other brands.
alltoo Cycling Electronics Editorial Review
The Shimano DI2 EC300 USB-C Charger Adapter has garnered mixed reviews from bike enthusiasts and casual riders alike. Predominantly praised for its compact design and practicality, this 4-pin to Type-C converter proves to be an excellent emergency tool, especially for those who utilize electronic shifting systems on their bicycles. Many users appreciate the adapter's lightweight and minimalist design, making it easy to carry in a saddle bag or pocket. Riding for long distances can be nerve-wracking, especially with the potential for a dead battery, but the security of having this charger on hand brings peace of mind. Customers have noted its solid Construction, allowing for reliable performance while on the road. The compatibility with multiple charging sources, from power banks to USB-C outputs from phones and laptops, further enhances its appeal. However, the common critique revolves around its charging efficiency and ease of use. Achieving a proper connection requires careful alignment of the adapter pins, which can be tricky during a hurried situation. Users have reported that while the charger is functional and offers a degree of comfort during rides, it does not provide the speed of charging seen with traditional chargers. Most users recommend it for emergency situations rather than as a replacement for regular charging methods. Some dissatisfaction arises from compatibility issues experienced by a few users, indicating potential inConsistencies with certain Shimano Di2 specifications. In conclusion, the Shimano DI2 EC300 USB-C Charger Adapter is a thoughtfully designed accessory that appeals to those looking for a compact backup solution while acknowledging its limitations in performance speed and compatibility. **
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Pros
- Compact and lightweight design for easy portability
- Well-Constructed casing that fits snugly with the derailleur
- Versatile compatibility with various USB-C power sources
- Provides peace of mind during long rides
Cons
- Charging speed is slower than traditional dock chargers
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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BND 37
Order now and get it around Wednesday, August 19
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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Features & Benefits
- Charge your Shimano DI2 system using any Type-C cable or power source.
- Durable, heat-resistant design withstands harsh weather and vibrations.
- Plug-and-play simplicity—no tools required for setup.
- Perfect for emergency power during long rides or bikepacking trips.
- Compact design for easy storage in bike bags or pockets.
- Compatible with Shimano 12-speed EW-EC300 and DI2 series.
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