Electric-bicycle

Clean natural environment-friendly battery :Li-ion battery / LiFePO4 battery; Look at the big buttons and easy to switch battery charge, mode 3 position in the LED display lights fool understand. 3 assists switching modes to choose from running: Strength Mode: Hill powerful and assists in carrying heavy loads at, Travel more comfortable. Standard Mode: Always stable and comfortable driving force assists. Driving condition, Assists ability (Strength and weakness) to automatically change them, Assists in the flatlands to reduce power, save the battery.