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Questions & Answers (3) Q & A
Busch & Muller have designed the USB-Werk with an integrated cache battery. It supplies 5V and up to 1A current. The battery ensures a constant voltage supply during slow riding and / or stops. For this reason the USB-Werk is a perfect fit for charging / powering USB devices such as mobile phones, GPS, MP3 player. The unit is supplied with cable and USB socket.

- Measurements: 32 (W) x 88 (L) x 23 (H) mm
- Can be used with the Universal Cockpit Adapter

NOTE: Not for Export - Mainland UK Only
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Questions & Answers (3)
Can It Charge Iphones?
13 Mar 2017
Your website says the E week can't charge iPhones. Can the USB werk?

As the output is regulated at a fixed amp rating on the USB Werk it is indeed suitable for use with IPhones.

Is It Possible To Plug A Ewerk Usb Charging Device Into My Schmidt Edelux Head Light
12 Mar 2017

the charging device will need to be wired directly into the dynamo as the rear output from the front light will not be sufficient to charge it. Depending on your dynamo you should be able to wire the light and charging device directly into the hub using piggy-back connectors.

Should I Disconect My Usb Werk When Not In Use?
03 Dec 2015

We would recommend if possible disconnecting the USB Werk from the hub when not in use as it will still provide extra drag to the rolling of the hub. It is however completely up to you if you remove it completely from the bike, this would take longer for removal and re-instalment but would mean that you didn't have an electrical device and wiring sat on your frame exposed to the elements when its not even being used.