b&m USB factory AC mobile charger via hub dynamo

Busch & Müller USB Werk AC Dynamo supplies USB power The USB Werk emits 5 V voltage and up to 1 A current. An integrated, small buffer battery ensures that the voltage supply remains constant at 5 V even when riding slowly and during short stops. The USB-WERK is therefore ideally suited for charging/operating USB devices of all kinds: mobile phone, GPS, MP3 player, etc. Includes output cable with USB socket. Universally applicable The voltage (up to 13.3 V) and current (up to 1.5 A) of the hub dynamo-powered universal mains charger can be adjusted in small steps. It charges from approx. 8 km/h. At only 15 km/h, it charges as quickly and powerfully as standard mains chargers. It can accept direct current up to 50 V. Operation on an e-bike battery or car battery is therefore also possible. Mounting The E-WERK can be attached to frame tubes of various diameters at any suitable location using the rubber rings or cable ties. The E-WERK is splashproof and rainproof Connection options E-WERK Universal connections for USB, mini-USB, micro-USB. 2 free cables for individual connections. with connectors for SON and Shimano hub dynamo. Waterproof cable glands.