
Shimano BT-DN300 Di2 Battery
The DN300 battery maintains the waterproof design trusted by Di2 users while providing stable power to Shimano 12-speed road systems. Its slim profile allows it to be housed inside seat posts or frames to ensure a clean bike aesthetic.
Now featuring three ports, the DN300 simplifies wiring to front and rear derailleurs. The additional port offers a fully wired option for riders seeking maximum redundancy, making it compatible with the next generation SD300 electric wires.
Quick Facts
| Feature | Specification |
|---|---|
| Compatibility | Shimano 12-speed Di2 (R9250/R8150 series and later) |
| Port Configuration | 3 SD300 ports for thinner next-gen electric wire |
| Mounting | Internal (Seat post or frame); shares fixing method with BT-DN110 |
| Weather Resistance | Waterproof construction |
| Wiring Options | Supports semi-wireless or fully wired configurations |
| Power Delivery | Stable power supply for derailleurs and shifters |
Original: $194.24
-65%$194.24
$67.98Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The DN300 battery maintains the waterproof design trusted by Di2 users while providing stable power to Shimano 12-speed road systems. Its slim profile allows it to be housed inside seat posts or frames to ensure a clean bike aesthetic.
Now featuring three ports, the DN300 simplifies wiring to front and rear derailleurs. The additional port offers a fully wired option for riders seeking maximum redundancy, making it compatible with the next generation SD300 electric wires.
Quick Facts
| Feature | Specification |
|---|---|
| Compatibility | Shimano 12-speed Di2 (R9250/R8150 series and later) |
| Port Configuration | 3 SD300 ports for thinner next-gen electric wire |
| Mounting | Internal (Seat post or frame); shares fixing method with BT-DN110 |
| Weather Resistance | Waterproof construction |
| Wiring Options | Supports semi-wireless or fully wired configurations |
| Power Delivery | Stable power supply for derailleurs and shifters |


















