Shimano BM-DN100-L Di2 Battery Mount
Best external mounting solution for cyclists upgrading to electronic shifting.
This external mount is the bridge between your electronic shifting system and wireless connectivity. It provides a stable, reliable home for your external battery, ensuring your drivetrain stays powered and ready for Bluetooth integration. It is a necessary component for maintaining a modern, responsive electronic shifting setup.
$130.98
More Di2 options
Shimano SM-JC40 Di2 External Frame Junction Box
$28.99
Shimano Di2 Junction Box
$139.99
Shimano Di2 Junction Box
$31.99
Shimano Di2 Battery Mount
$154.99
Shimano BT-DN110A-7 Di2 Internal Battery
$170.00
Shimano Di2 E-Tube Wire
$30.00
Shimano BT-R1A Di2 Battery
$99.99
Shimano JUNCTION-B
$31.00
Shimano EW-JC200
$25.99
Shimano EW-JC130
$57.60
Shimano Di2 Battery Mount
$84.99
Shimano BCR1 E-Tube Battery Charger
$21.54
Shimano BT-DN320A Battery
$55.00
Shimano SW-RS910 Di2 Junction Box
$21.99
Shimano Di2 Battery BT-DN320
$55.00
Shimano E-Tube Y-Splitter
$52.53
Shimano EW90-A Di2 Cockpit Junction Box
$140.00
Shimano EW90-B Di2 Cockpit Junction Box
$181.32
Shimano SM-EW90-B Junction A
$139.50
Shimano EW-WU111 Wireless Unit
$75.00
Shimano SW-EW90-A
$117.00
Shimano SM-JC41 Di2 Junction Box
$38.00
Shimano EW-SS302
$25.99
Shimano Di2 E-Tube Wire Cover
$15.00
Shimano Di2 eTube EW-AD305 Conversion Adapter
$23.99
Shimano Di2 E-Tube Y-Split Connector
$54.99
Shimano Di2 E-Tube Battery Mount BMR2
$99.99
Shimano ST-R785 Di2 Shift/Brake
$259.99
Shimano BMR1 and BRM2 Di2 External Battery Mount Base
$47.22
Shimano Power Cable
$14.00
Shimano BT-DN110-1 Di2 Battery
$159.99
Shimano EW-SS302 eBike Sensor Unit
$27.90
Shimano SD50 E-Tube Wire Cover
$15.00
Shimano Di2 EW-SD50 E-Tube Wire
$30.60
Who it's for
- Tech-savvy cyclists wanting to tune shifting via a smartphone app
- Riders with older or specialized frames needing reliable external power
- Performance-oriented riders seeking advanced shifting modes and data tracking
Who should skip it
- Weight-conscious racers and minimalists who prefer a clean frame silhouette
- All-weather commuters and gravel riders concerned about component longevity
- Casual DIYers who prefer simple, plug-and-play maintenance solutions
Performance breakdown
Connectivity Integration
Seamlessly bridges the gap for wireless shifting and firmware updates.
Mounting Stability
Robust design keeps the battery locked tight on rough terrain.
Installation Ease
Straightforward setup that integrates cleanly with standard bottle cage mounts.
Build Durability
Hard-wearing materials withstand harsh weather and consistent road vibration.
System Compatibility
Perfectly tailored for SM-BTR1 batteries and existing Di2 ecosystems.
Aesthetic Profile
Functional, though external mounting lacks the sleekness of internal routing.
Key Specs
Compatibility
SM-BTR1 batteries
Mounting Type
External
System
Di2 electronic shifting
Application
Bluetooth shifting solutions
Know before you buy
Still have a question?
Ask Metto anything about the Shimano BM-DN100-L Di2 Battery Mount before you decide.
