Dura-Ace Di2 (Dual Integrated Intelligence) moves to the next generation. Tested in competition and taken to victory by pro riders in all conditions, including the 2012 Tour de France Team Sky.

Keep your internal battery charged up with this Di2 unit.

Key Features:

• Dura-Ace Di2 charger that will keep your Di2 system shifting.
• Dura-Ace 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.
• LED indicator lights.
• 1.5 hour charge time.
• Does not include a power lead