Our second-generation 504 Wh rear carrier battery offers an outstanding balance of capacity and weight for efficient range extension.  

• Capacity: 504 Wh (36 V, 14 Ah)
• Fully charge in 5 hours with EC-8004 charger
• Temperature: 0°C - 40°C (charging) -10°C - 50°C (operating)
• Long-lasting battery retains more than 60% of its initial maximum capacity after 1,000 full charges
• Compatible with SHIMANO STEPS second-generation rear carrier battery mount
• Durable battery