BT-DN300 Battery
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Shop Similar ProductsBT-DN300 Battery powers advanced Di2 systems with light weight, secure fit, and all-condition charge performance
What Our Gearhead® Experts Are Saying:
"This is the beating heart of Di2 12-speed builds. You forget it’s there—until you realize how consistent and long-lasting the charge is. Ideal for anyone riding big days or multi-surface miles."
The BT-DN300 Battery unlocks the full potential of Shimano’s newest Di2 wireless drivetrains, consolidating power and plug-and-play simplicity for the most demanding road and gravel setups. With improved 300-series Di2 wiring, it connects both derailleurs securely while tucking away in the frame, maintaining a pro-level clean look. Extended capacity ensures months of performance between charges for avid racers and century enthusiasts, and the stable voltage output eliminates dead spots or sluggish shifts. Built for precise compatibility, it keeps your electronic shifting snappy, predictable, and ready for every course—no matter where your drop bars go. This battery is the backbone for those setting up the lightest, most advanced drivetrains in the Shimano wireless ecosystem.
Details
- Di2 seat tube battery engineered for latest Dura-Ace and Ultegra wireless systems
- Powers both derailleurs with compact, single-unit design
- Quick-connect 300-series wiring improves wireless reliability and control
- Delivers longer charge and more cycles than previous generation Di2 batteries
- Consistent voltage output supports precise, responsive electronic shifting
- Compatible only with Shimano’s latest 12-speed Di2 drivetrain setups
- Lightweight build (59g) integrates seamlessly into seat tube or frame
- Item #SHIU1E6
- Compatibility
- Dura-Ace Di2
- Claimed Weight
- 59g
- Activity
- road cycling, gravel, cyclocross
- Manufacturer Warranty
- 1 year