Call us on 01278 441500

Ullmann Power Station V4 USB Dynamo Powered Charging Device

Product Reviews (0)
Questions & Answers (2) Q & A
Perfect for cycle touring. With the Power-Station V4 you can supply your USB-Device with electricity from your hub dynamo during the ride. Perfect for smartphones, GPS, buffer batterries, MP3-players, battery chargers and more. . .
The inconspicuous Power-Station V4 is supplied with a twin core wire cable with 2 Schmidt compatible piggyback connectors at one end and a barrel plug at the other and a 30cm micro USB cable. The piggyback connectors fit the Schmidt‘s Original Nabendynamo (SON), but the Power-Station V4 can be used with other hub dynamos as well by cutting off the connectors and replacing them with your own. It has no mechanical switches nor potentiometer. The Power-Station V4 has an output of up to 5V DC.power according to the USB Battery Charging Specification of your own device The actual cycling speed in order to provide 5V output, depends on the individual characteristics of your mobile device, your hub dynamo and your wheel size.Please check with your device’s manufacturer for compatibility/requirements.Weight: app. 19 grams w/o wires. The Power-Station V4 has been extensively tested in real life situations and in different climates. Heikki Siivari, the Finnish extreme cyclist and ultra-light backpacker, used it on his long distance rides 2013, 2014, 2015 and 2016. During these rides he was completely independent of mains electricity. Designed in Finland, developed in Finland, handmade in Finland, tested throughout Europe.
Download File  
Be the first to write a review
Feel free to leave a review of this product, good or bad it helps other customers with their buying decision.
Questions & Answers (2)
Apologies, could you be a bit clearer about the size?
04 Aug 2017
Is the 22mm a diameter? For example, would the product fit within a 27.2 id seatpost? Thanks
Hi, yes 22mm is the diameter (it's not a perfect circle so widest point). Yes it would fit inside a 27.2mm tube. Thanks
What Size Is The Ullmann Power Supply Device. I Take It Will Work With An Sp Hub Also
15 May 2017

I'm assuming by size you mean the actual dimensions of the device which are 50mm x 22mm. You will need to change the connectors but otherwise will be fine for use with an SP hub.