Dynamo Hub Battery Charger

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.

Dynamo hub battery charger. 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. The efficiency of a high quality dynamo hub at low power eg. The idea was requested by mr. It converts electricity generated by hub and bottle dynamos to usb output.

High speed overload protection. This means that when the charger is making between 1 3 watts you can roughly double that figure to work out the drag in watts at the hub. This project demonstrates charging two 1 2v rechargeable batteries with 12v cycle dynamo using a 12v solar charger circuit. The charts above show the power created at the dynamo hub by different usb chargers.

Sinewave revolution usb charger 119 99. Best in class efficiency. A bicycle dynamo hub however usually creates electricity in the form of alternating current ac at 6 volts. The revolution allows users to charge usb powered devices while riding.

Bicycle dynamo battery charger circuit. So we ve got to change the electricity created by the dynamo hub 6v ac into the same type as what comes out of your smartphone wall charger or your laptop s usb 5v dc. Cycling at 10 20km h works out to be around 50 60. The sinewave cycles revolution is a bicycle dynamo powered usb charger.

That s what this device does.