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/n/ Transportation

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Anonymous 2016-12-27 14:16:37 No.1036557

[Missing image file: ]

hey /n/

what could i power with a hub dynamo?

i was first gonna install some indicators with a small battery, switch & relais. but people have been saying that it won't work.

i'm no electrician, but i thought like they won't be used all the time and when needed i could get the power directly from a 6v battery which will be charged all the way when not used.

would this work?

also, gadget thread?


>>
Anonymous 2016-12-27 15:34:22 No.1036559
>>1036557
>what could i power with a hub dynamo?
A love egg. You know you want to.

>>
Anonymous 2016-12-27 15:36:07 No.1036560
A couple dynamo lights also have a USB port so you can hook up one of those rechargable lithium packs.

When there is no load on the dynamo there is less drag, so there is a benefit to not generating power.

>>
Anonymous 2016-12-27 16:02:05 No.1036567
>>1036557
>Oh look it's THIS thread again
All dynamo hubs generate a MAXIMUM of 3 watts (6 volts at 500mA).
The output voltage varies with road speed therefore so does the total output power generated.
It's not enough to much of anything with other than run a single small headlight.
Most electronics won't tolerate the power going on and off when you start and stop, or how variable the voltage is.
You couldn't even charge your phone from it because of the power starting, stopping, and varying so much.
The best you could do is charge a VERY SMALL battery pack, and unless you ride for hours and hours a day you won't charge it all the way.
Really, seriously, honestly, DO THE MATH, you'll discover everything I'm saying is true and that it's not worth the trouble and expense to add this to your bike, it won't do what you want it to do, it's just meant to run a headlight and that's ALL it's meant to do.

>>
Anonymous 2016-12-27 16:51:22 No.1036587
>>1036567
>Oh look it's THIS thread again
sorry, new to /n/

>everything I'm saying is true and that it's not worth the trouble and expense to add this to your bike, it won't do what you want it to do.

well alright then. good answer. it's just i tore my headlight off (which was powered by that hub) because it was ugly af and didn't fit with the bike. and now it's just sitting there. thought i could get some use out of it by installing the indicators.

>>
Anonymous 2016-12-27 17:07:34 No.1036589
>>1036587
>>turn indicators
>>on a bike

kek
just use your hand signals retard
any lights you put on a bike are going to be so close together that cars can't tell wtf direction they're indicating anyway

>>
Anonymous 2016-12-27 18:29:15 No.1036594
I use an Alfine dynamo with an axa front light that has a USB plug. I can fully charge a Nexus 5 cell phone in half a day of touring provided the light is switched off.

>>
Anonymous 2016-12-27 18:43:59 No.1036598
Has anyone tried solar panels on their bike? I want to charge a large usb power bank for keeping on the bike

>>
Anonymous 2016-12-27 20:16:23 No.1036618
>>1036589
you think i don't? i do use my hands but at night car here seem to ignore them. + indicators would look cool on my bike imo







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