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A comment on Shimano Forces Hammerhead to Remove All Di2 Related Functionality From Karoo. Parent comment

Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by ndsipa_pomu on Friday June 03, 2022 @09:32AM (#31608009)
Back and front are powered by the same battery which typically lives in the seat post. When the battery gets too low, the front shifts are disabled first as they take more juice.
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Re:Shimano Forces Hammerhead to Remove All Di2 Related Funct... by kmonsen on Sunday June 05, 2022 @01:04PM (#31632781)
Not on mine, SRAM etap, there is a small rechargeable battery in the front and back. They are the same so can be swapped.

I really, really like it. I know I paid way too much for that bike but it is amazing and I can really feel the difference in a way I never could before.

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