Busch & Muller vouches solely for a faultless functioning of the E-WERK. Exempt from liability is any damage to connected devices of all kinds. It cannot be guaranteed that the E-WERK is able to power all connectable devices. For example, some mobile devices cannot be charged while riding due to fluctuating voltages. Other devices have to be switched back manually to be powered by the E-WERK after stopping. Both types of devices can be powered using a suitable cache battery, e.g. our cache battery 461A (not included in scope of delivery).
For battery powered devices that do not accept external power sources and can neither be powered nor charged by the E-WERK or a cache battery, batteries can be removed and charged by the E-WERK using an external charging device. Please contact the device's manufacturer for information regarding powering and charging!
Further information can be found on the B&M website www.bumm.de