shimano Di2 internal battery charger

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The Di2 charger for use with  internal battery that will keep your Di2 system shifting

    • Di2 uses a powerful long-life 7.4V Li-Ion battery: keep it in top condition and ready for shifting with this specific Shimano Di2 charger
    • 1.5 hour charge time
    • Plugs in directly to the SM-EW90 handlebar junction A or bar end plug EW-RS910
    • Can also be used for completing firmware updates when linked to E-tube software on your PC