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Rear Derailleur Battery Replacement for Shimano Di2 BT-DN300, Di2 SM-BTR1, Di2 BT-DN110 - 500mAh 7.4V Li-ion | 889001627
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Amazon.com : SHIMANO BT-DN300 Built-in DI2 Battery - for Dura-Ace 9150 and Ultegra R8150 Systems, Compatible with SD300 Wires : Sports & Outdoors
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Di2 battery replacement (using 550mah), Sports Equipment, Bicycles & Parts, Parts & Accessories on Carousell
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Amazon.com: FOUNCY Battery Replacement for Panasonic Part NO: Kalkhoff Pro Connect i8 HS 8-G, Kalkhoff Pro Connect Impulse 8, Kalkhoff Sahel Compact 8-G Nex, Kalkhoff Sahel i11 Di2 11-G DI : Health
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