EC300 Electronic Rear Derailleur Charger Compatible with Shimano Di2(R8170/R9250/R7170/RX825/R8150) Compact Charge EC300 USB-C Adapter Cable for Mountain Bike and Road Bike (Black)

• Universal Type-C Charging for Emergency Use with Confidence: This ec300 electronic charger uses a universal Type-C charging port for excellent compatibility and easily fits a variety of common devices including power bank for mobile phones, computer USB ports and 5V outlets. Whether you're cycling or at home, it's always ready to meet your needs and offers convenient use.
• 5V 1A Safety Protection to Prevent Rear Derailleur Burn: This ec300 charger adapter strictly adheres to the 5V 1A safety standard, limiting the input power to a low power mode to avoid any risk of electric shock that can damage the internal circuits of the Di2 rear derailleur. This effectively protects the components of the Di2 rear derailleur and ensures a smooth load.
• 【Smart Indicator Light for Clear Charging Status】This ec300 adapter charging cable has an intelligent indicator light that displays the charging status under different lighting conditions. A steady blue light indicates that the device is charging, a dark light indicates that it is fully charged. If the device blinks abnormally, simply unplug the port to reset it.
• All-metal buckle, durable and anti-loosening: This ew-ec300 charger features an all-metal buckle with upgraded metal contacts and precise design, ensuring a safer connection than standard cables. Even on bumpy roads, it is less likely to loosen or disconnect, ensuring a continuous and stable load, suitable for complex use situations.
• Extensive Compatibility with Di2 12 Speed Groups: This ec300 derailleur loader offers extensive compatibility with the most common Di2 12-speed groups including R8150, R9250, R7170, R8170 and R9270. A single cable allows multiple Di2 groups to be charged for multiple models, providing great convenience for users of multiple bikes.

Features: 1. This electronic rear derailleur charger is compatible with external batteries, computer USB ports and 5V outlets, allowing you to recharge your battery outdoors or at home, eliminating battery worries. 2. This ec300 derailleur charger strictly limits input to 5V to prevent high voltage damage to the Di2 rear derailleur circuit, a safety solution recommended by repairers. 3. The blue light of the ew-ec300 charger is permanently on while charging, turns off after charging is complete, and resets when abnormal flashing, avoiding accidental use. 4. The reinforced metal contacts and the precise design of the ec300 adapter charging cable provide better stability than standard cables and prevent disconnections during rough trips. 5. This ec300 charger adapter is compatible with common models such as R8150, R9250, R7170, R8170 and R9270, meeting the needs of many models. Please note before use: 1. Do not use a dual-ended Type-C data cable. Reason: These cables use special protocols and can prevent the EC300 adapter from charging. 2. Always use a standard USB-A + Type-C data cable! (The USB-A end connects to the charger/computer, and the Type-C end to the adapter.) Reason: A standard universal cable provides optimal compatibility and ensures optimal charging. 3. Do not unplug the adapter vertically; press it to loosen it before unplugging. 4. Always use a 5V/1A charger (recommended: the original adapter or the power bank that came with your phone). Do not use fast charging sockets! High power could damage the rear derailleur motherboard.