Image By shaking the battery, the power indicator lights will flip on to let you know how much juice it has. For now, the battery must be removed from the bike to charge it. Related: Transition Crankworx E-Bike Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 35 of 35Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter BHowell 8/15/2022 8:18am Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter