Which Dynamo USB th...
 

[Closed] Which Dynamo USB thingy to get?

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I've got my first Dynamo hub as par reccomendations of you good folk here! (SP-PD8 incase anyone's wondering). I now need the USB thing so I can charge my devices, but I'm not quite sure what to get. Some of them are very expensive, in terms of more affordable options I've found [url= http://www.sjscycles.co.uk/tigra-sport-bikecharge-power-pack-prod32330/ ]this[/url] for £39 and [url= http://www.sjscycles.co.uk/biologic-reecharge-dynamo-kit-with-micro-usb-cable-prod27225/ ]this[/url] for £25, can anyone offer me a helping hand? Thanks 🙂


 
Posted : 28/07/2014 9:53 pm
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There's been a few thread on this over on the bearbonesbikepacking forum, including mention of those devices. I'd head over there.....

http://bearbonesbikepacking.co.uk/phpBB3/index.php


 
Posted : 28/07/2014 9:56 pm
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is it for mtb or road?

If road, and if you don't already have a light, you might want to consider the luxos u, which is a decent road light plus usb out. it's around £80-90 i think though. Only worth it if you need the light anyway.


 
Posted : 28/07/2014 9:57 pm
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[url= http://www.sjscycles.co.uk/tout-terrain-the-plug-iii-hub-dynamo-powered-charging-device-prod32128/ ]This[/url] thing is ludicrously expensive but about the neatest option there is.


 
Posted : 28/07/2014 10:13 pm
 Bez
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If you've not bought a light yet, the Luxos U is a good option; or there's the Axa Luxx 70 if your budget's tighter. I tend to order dyno kit from Germany (Rose, Starbike, Bike24, in that order of preference) as it's *much* cheaper than the UK.

I *think* the Reecharge one you link to is missing a diode that protects it from getting fried, but I may well be wrong. Have a search on the CTC and YACF forums, it's been discussed on both IIRC.

There's also the Kemo M172 at £25. I've used it and it works fine, although it's not a tidy or attractive solution.


 
Posted : 28/07/2014 10:53 pm
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I use a sinewave revolution and have been really happy with it so far. Wired in tandem into an sp hub along with an exposure revo. You can then charge garmins/iPhones/helmet lights etc from it. Current is regulated to protect the charging device. Garmin/iPhone only charges over about 15kph tho which can be problematic on rough off road sections (unless you're much faster/stronger than me)! Only available direct from sinewave in US at the moment I think so import duty adds to the cost, but it seems a great solution and has been very reliable over the 10 months I've owned it


 
Posted : 29/07/2014 7:35 am
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If money wasn't a concern, the [url= http://www.klite.com.au/#!product/prd1/2539941961/sinewave-cycles-reactor-usb-charger ]new Sinewave stem cap USB[/url] would be my choice I think. As it is I'm trying a homebrew box unit, will report back if it works. It's a USB out with cache battery.


 
Posted : 29/07/2014 8:26 am
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I've got two different Kemo ones (and two different SP-PD8 hubs)

[url= http://www.kemo-electronic.de/en/House/Home/M172-Bicycle-charge-controller-USB-Mini-B-.php ]M172[/url] and [url= http://www.kemo-electronic.de/en/House/Home/M172N-Bicycle-Power-Charge-Controller-USB.php ]M172N[/url]

I bought the M172N as I broke the USB plug on the M172 and as it was a week before I needed it for the LEL I didn't want to risk my dodgy re-wiring. I think it works though.

You can have the M172 for a tenner if you want.


 
Posted : 29/07/2014 8:55 am
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For those using a Plug/Reactor, do you really need a pass-through SFN, or is it practical passing the words through the gaps?


 
Posted : 29/07/2014 7:21 pm
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Depends on the SFN. If the tabs are lined up OK it's fine. If they are "staggered", it's not.


 
Posted : 29/07/2014 7:38 pm