Range extender battery

The Bosch PowerMore 250Wh additional battery supplements the power of the standard 800Wh battery – for even greater range and flexibility. Only as big as a drinking bottle and weighing just 1.6kg, it can be stowed away in a backpack or bike bag. And should you spontaneously decide to go on a longer trip, then just attach the energy reserve and continue riding for another 50km without the need to stop and charge.