Shengmilo MX03 Electric Bike – 1000W Fat Tire E-Bike for Mountain and City Riding48V17. 5AH SAMSUNG BATTERY Shengmilo MX03 combines the new battery technology with a 18650 high performance SAMSUNG battery cells, this 840Wh battery efficiently improves the range, stability, and safety of Shengmilo bikes. A single charge can last up to 40~50 km on throttle mode and over 80~90 km with pedal assist mode. More than 1500 charging cycles, Battery capacity is not less than 90% after 8 months, not less than 80% after 18 months. POWERFUL