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I've never ridden a dynamo hub, but I have a physics degree and know quite a bit about electrical engineering and resulting forces..
And no! Whether it's on all the time or not. It's the amount of charging done that results in a resistance in your dynamo. So when you plug it in occasionally, you get a higher resistance for a shorter time. Resulting in the same total resistance..
Jaap-
It's the amount of charging done that results in a resistance in your dynamo.
But isn't the voltage and current drawn by a charger always going to be the same?
Ie, an iphone charges at like 5v and 1 amp right?
So if you plug it in when the battery is flat and charge it until it's full and then unplug it'll have drawn 5v at 1 amp for say an hour or so.
If you leave it plugged in all the time and the charger maintains the battery at 100% it'll draw 5v/1amp all the time.
No?
I have kind of wondered whether I make things harder for myself by leaving my lights on all the time. I thought that in setups like mine where the on/off switch is on the light, the hub always provided power and therefor had the same resistance. You had to have a switch on the hub (is this even a thing?) that turned power generation on and off to get a difference in the resistance.
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I've never ridden a dynamo hub, but I have a physics degree and know quite a bit about electrical engineering and resulting forces..
And no! Whether it's on all the time or not. It's the amount of charging done that results in a resistance in your dynamo. So when you plug it in occasionally, you get a higher resistance for a shorter time. Resulting in the same total resistance..
Plug it in at top of hill, unplug at bottom?
M_V
Dammit
Do you want to run it all the time, with the Dynamo hubs constantly powering it?
Even on high end Dynamo hubs, you can actually feel it rumbling slightly when it's on, and sweet fuck all when it's off.
It's best to simply use the Dynamo to charge the battery with a switch without removing the battery in the first place, that would be better.