A large-capacity down tube battery that's perfect for riders who want to go longer between charges. Our second-generation 630 Wh integrated down tube battery offers a compact design and a low center of gravity, giving you a more natural riding feel. It has a capacity of 630 Wh (36 V, 17.5 Ah) and can be fully charged in 6 hours with the EC-8004 charger. It operates in a temperature range of -10°C - 50°C and can be charged between 0°C - 40°C. After 1,000 full charges, it retains over 60% of its initial maximum capacity. Compatible with SHIMANO STEPS second-generation integrated down tube battery mounts, it has an IPX5 water-resistant construction, suitable for various weather conditions and low-pressure washes. It also supports a sleek frame design and uses the same mount as BT-EN805 and BT-EN805-L, with the same appearance as BT-EN805-L.

Using this battery is easy. First, make sure it's properly mounted on your bike using the compatible SHIMANO STEPS second - generation integrated down tube battery mount. To charge it, use the EC - 8004 charger and expect a full charge in about 6 hours. Only charge the battery when the temperature is between 0°C and 40°C, and operate it in temperatures from - 10°C to 50°C. For maintenance, since it has an IPX5 water - resistant construction, it can handle low - pressure washes and normal exposure to the elements. But try to keep it dry as much as possible. After about 1,000 full charges, you'll notice it still retains over 60% of its initial capacity, but if you start to experience reduced performance, it might be time to consider a new battery.