Shimano
Di2 E-Tube Battery Charger
Best essential tool for cyclists maintaining older electronic shifting battery systems.
Keep your Shimano Di2 electronic shifting system powered and ready with the genuine Shimano BCR1 E-Tube Battery Charger. Specifically designed for BA7970 (BTR1) Li-ion batteries, this charger ensures reliable performance for your drivetrain. Its compact, black design is an essential tool for maintaining optimal battery health and consistent electronic shifting. While the power cable is sold separately, this charger provides a straightforward and dependable solution for keeping your Di2 system operational for every ride, ensuring you never miss a beat on the road or trail.
$70.75
Owner Satisfaction
4.7
/ 5
Category Rank
68
/ 2100
#68 in Components
Price vs Category Average
-31%
Below average
Brand
SHIMANO
/ SHIMANO
Who it's for
- Tech-savvy riders customizing shift performance and firmware settings
- Di2 owners needing a safe, manufacturer-approved power source
- Cyclists preferring quick, hassle-free charging without battery removal
Who should skip it
- Budget-conscious riders seeking universal, off-the-shelf charging solutions
- Cyclists wary of high costs for specialized proprietary hardware
- Riders with bikes featuring difficult-to-reach charging ports
Performance breakdown
Charging Reliability
Genuine Shimano engineering ensures consistent, safe power delivery for your battery.
System Compatibility
Perfectly calibrated for BTR1 batteries to maintain peak shifting performance.
Portability
Compact design fits easily into any travel kit or gear bag.
Build Quality
Durable construction built to withstand the rigors of frequent component maintenance.
Setup Simplicity
Straightforward plug-and-play operation, though the missing power cable adds a step.
Maintenance Utility
An essential tool for keeping electronic drivetrains running without interruption.
Key Specs
Brand
SHIMANO
Model Number
ISMBCR1
Part Type
Battery Charger
Color
Black/One Color
Compatible Battery Types
Li-ion
Country of Origin
United States
Input Interface Type
AC Wall Plug
Features
- Genuine Shimano replacement part
- Charges BA7970 (BTR1) batteries
- Reliable power for Di2 systems
- Compact black design
- Maintains drivetrain performance
- Essential for electronic shifting
- Model ISMBCR1
- Sold without power cable
What customers say
Users overwhelmingly praise the Shimano Di2 E-Tube Battery Charger for its flawless functionality and essential role in the electronic shifting ecosystem. The core theme is reliability; customers trust its consistent, straightforward plug and play operation to keep their high performance bikes ready. While some note the price is high for a dedicated charger, its dependable performance justifies the investment for Di2 owners. Its compact size is also appreciated for travel. This device is viewed as a vital, high quality component that seamlessly integrates into the premium Di2 experience, making it indispensable for maintaining electronic shifting.
Know before you buy
No, the Shimano BCR1 charger is specifically designed for the BA7970 (BTR1) external Li-ion battery. It is not compatible with internal seatpost-mounted batteries.
No, the power cable is sold separately. You will need to source a standard Shimano-compatible power cord to connect the charger to your wall outlet.
Check your battery model number; if it is labeled as a BA7970 or BTR1, this is the correct charger. This unit is the genuine Shimano replacement part, model number ISMBCR1.
No, this charger is strictly for the external BTR1 battery. Internal batteries require a different charging system that connects through the junction box.
Simply ensure the charging contacts are clean and free of debris before connecting the battery. Using the genuine Shimano charger helps maintain the long-term health and capacity of your Li-ion battery.
Still have a question?
Ask Hayley anything about this product before you decide.