Built for the latest 12-speed Di2 wireless drivetrains, this high-efficiency internal battery delivers long-lasting performance and rock-solid reliability on every ride.With smart charging, compact design, and seamless integration, it’s the heartbeat of your Di2 setup. Charge it up, clip in, and ride with flawless, electronic precision.
Best Price: £39.99 from Tredz Limited
| Stockist | Catalogue Product Name | Price | |
|---|---|---|---|
| Shimano BT-DN320 Di2 Wireless Rear Derailleur Battery | £39.99 | Visit Store |
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