Shimano Di2 Battery SM-BTR1 - Tri Town Bicycles
![](https://cdn.shoplightspeed.com/shops/614837/files/36451330/shimano-shimano-di2-external-battery-sm-btr1.jpg)
Shimano Di2 internal frame junction box.
![](https://cdn.shoplightspeed.com/shops/614837/files/36451182/300x250x2/shimano-shimano-e-tube-di2-ew-sd50-internal-frame.jpg)
Shimano Shimano E-Tube Di2 EW-SD50 Internal Frame Junction Box SM-JC41
![](https://www.jensonusa.com/globalassets/product-images---all-assets/shimano/el250d04_1-black.jpg)
正規品販売! パーツ SM-BMR2 SM-JC40 SM-EW90-B SM-BTR1 Di2 パーツ
Compatible: Dura-Ace 7970, 9070 / Ultegra 6770, 6870.
Shimano SM-BTR1 Di2 Li-ion External Battery Pack 7.4v Road Bike 7970 9070 Series
Shimano Di2 Batteries. Must purchase battery, charger, and power cable to complete the system. All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions. Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems. Battery weighs 71g.
![](https://images.performancebike.com/cdn-cgi/image/f=auto,width=950/images/large/bikes/shimano/sm-btr1_2.jpg)
Shimano SM BTR1 Di2 External Battery
![](https://www.cxmagazine.com/wp-content/uploads/2022/03/untitled-0321-360x200.jpg)
Mechanical Monday: Mountain Bike Di2 XTR with a Shimano Road Drivetrain and Shifters
![](https://images.performancebike.com/cdn-cgi/image/f=auto,width=950/images/large/bikes/shimano/ismew90b.jpg)
Shimano Di2 E-Tube Junction Box A (5 Port) - Performance Bicycle
![](http://cambriabike.com/cdn/shop/products/sram-force-axs-hydraulic-disc-brake-front-left-1443615_600x.jpg?v=1677844146)
SRAM Force eTap AXS HRD D2 Shift/Brake Lever and Hydraulic Disc Calipe - Cambria Bike
![](https://images.performancebike.com/cdn-cgi/image/f=auto,width=950/images/large/bikes/shimano/ismew90b_1.jpg)
Shimano Di2 E-Tube Junction Box A (5 Port) - Performance Bicycle
![](https://cdn.shoplightspeed.com/shops/614837/files/36415774/262x276x1/shimano-shimano-di2-e-tube-ew-sd50.jpg)
Shimano Di2 Battery SM-BTR1 - Tri Town Bicycles
This Lithium Ion battery for Shimano Di2 electronic shifting systems was developed as an external battery option for e-Tube
![](https://images.excelsports.com/public/large/112519-1.jpg)
Shimano Di2 SM-BTR1 External Battery
![](https://www.incycle.com/cdn/shop/products/sh_0036_img_8003.jpg?v=1665683176&width=1946)
Shimano Long Size Battery Mount for EW-SD50 Ultegra-DI2 SM-BMR1 w/opkge
![](https://images.performancebike.com/cdn-cgi/image/f=auto,width=370/images/large/bikes/shimano/iewjc304.jpg)
Shimano SM-BTR1 Di2 External Battery - Performance Bicycle