Shimano battery for Dura-Ace Di3

• New Shimano Di2 Battery made for DURA ACE or ULTEGRA

The Shimano Di2 battery is a 7.4V、 high performance Lithium Ion battery designed to deliver reliable、 long life even in the worst conditions. In conditions requiring consistent and frequent shifting、 the battery is capable of 1000 kilometers of use. Call it Ultegra、 call it Dura-Ace、 but we'll call it the one you'll need.

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