Di2 charger cable for the 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. Charge time: 1.5 hours. Length: 1700mm. Plugs in directly to RDR9250 / RDR8150 rear derailleur.
Best Price: £35.99 from Merlin Cycles