Dynamo Hub Vs Battery
Although the connector parts are made from plastic and appear cheap and flimsy at first glance in practice they work just fine.
Dynamo hub vs battery. A 3 watt dynamo hub will add between 350 and 400 grams in mass. We use hub dynamos systems all the time and on all kinds of bikes. With dynamo hubs lights and chargers becoming better by the day i ve been getting a lot of inquiries about how to wire up the best hub dynamo system. 1 5 watts 2 4 watts or 3 watts all at 6 volts.
With led light technology allowing for 1300 lumens or 100 lux light outputs usb charging for gadgets and lithium ion battery storage dynamo hubs feel like the right way to harvest energy. The hub uses a two piece connector the same as shimano dynamo hubs to join the contacts on the drive side of the hub to your lights charger or whatever else you want to power. A current limiting buffer battery like the smart power pack ii is designed for dynamo hub charging allowing you to switch between set charging currents eg. I love powering my devices from a dynamo hub.
If lipstick batteries are dumb variable current buffer batteries are smart. Now i won t be going into the detail about each individual component rather this resource is about understanding the hub dynamo system as a whole. A dynamo hub lightning system powers your lights even when your batteries fail you. 100 400 or 900ma for different riding speeds.
The battery shuts off all assist at 2 3 remaining yet will still drives the lights for 2 hours. For off road use such as 24 hour mountain bike racing the use revo is a neat solution that fastens to the handlebars and. Dynamo hubs can actually charge pretty much anything. Good quality dynamos have no noticeable resistance and coupled with a power supply will provide ample power for most gadgets you carry on a ride.
Dynamo hubs are quite widely adopted in the bicycle touring bikepacking and ultra racing scenes. You might think this is a worthwhile compromise until you realise that it s only 100 grams less than two 4 cell lithium ion battery packs. But before you buy a dynamo and install it on your bike consider this. The disc hub comes in a bit over 400g and is.
Given that touring and bikepacking is often conducted at speeds below 25kph 15mph the most powerful option 3w is necessary for charging usb devices and it s the best for low speed lighting too. There are too many good lights out there for us to list on our little website but we mostly use busch müller as they have proven themselves well made and reliable. There are three different power specifications for dynamo hubs. Biologic joule 3 this is one of the lightest and most efficient dynamo hubs on the market.
Also like the st2 the turbo will drive the lights even with the battery removed using the hub motor as a dynamo.