Only the size of a 500 ml water bottle the lightweight TQ Range Extender integrates nicely into the frame of your e-bike and easily fits into any standard bottle cage. Thanks to its Dual Charge Port the Range Extender can be charged simultaneously with the main battery without the need to be removed from the frame. With a capacity of 160 Wh the Range Extender has enough energy to extend your after-work laps to an epic all-day ride.