Shimano Di2 BatteryThe Di2 Dura-Ace system utilizes a lightweight (69 grams) lithium-ion battery to power all the systems. On a full charge the battery will last approximately 1,000 miles and recharging takes a short 1.5 hours. Charger and wiring kit sold separately.
- Lightweight and with easy mount and remove
- Weight: 68g
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