• your battery is dead, it should be around 7,4V. Send it back to where you bought it and Shimano will provide a new one. Happened to me once..

  • That is what I thought. I can't imagine the volage would be that low a depleted battery.

    Does anyone know if shimano's two year warranty applied to parts sold as part of a full bike?

  • Take it back to the shop, this isn't your problem.

    Assuming you're in the EU, goods have to work for a reasonable amount of time, where reasonable depends on the product.

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