Dynamo Hub Battery Pack

Cinq 5 smart power pack ii 3000mah battery with variable 100 450 900ma current 99 total.

Dynamo hub battery pack. Schmidt son 28 dynamo hub us 265. 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. Shimano ur705 disc dynamo hub amazon special us 120 the busch müller eyc t 50lux light amazon special us 74 the kemo m172n usb charger us 50 optional. That s what this device does.

Making a battery pack for a bicycle dynamo hub 5v in ac current 06 02 2020 8 46 pm hey all ok ive had major progress and i managed to get everything working the way i wanted i also took your advise and made full readings underload at ac level after diodes dc level after current regulator im getting way more volts than i expected. My touring setup is an sp hub with front and rear dynamo lights and the plug ii usb charger. 100 400 or 900ma for different riding speeds. I ran a dynamo for about 8 months during that time i constantly had issues with breaking the little cable at the connection near the hub which is easy to forget about when removing wheels pushing through overgrown trails and so on.

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. A typical good quality center lock front hub like a shimano ultegra cx75 weighs 166g but the 238g extra for the pl 8 is less than the weight of the battery pack you ll be leaving at home. I really only need to charge my phone and my garmin and i ll bring a battery pack for really remote areas. A 3 watt dynamo hub will add between 350 and 400 grams in mass.

If lipstick batteries are dumb variable current buffer batteries are smart. The hyperjuice 2 is the next generation of battery pack that feature an advanced battery management and monitoring system. From the hub dynamo you attach a cable that converts the ac power into dc power that most small electronic devices need. 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.

A bicycle dynamo hub however usually creates electricity in the form of alternating current ac at 6 volts. The pedalpower universal cable can be attached to other dynamos to use with the v4 battery pack or can charge small electrical items directly. Dynamos will never grace the bikes of true weight weenies but the pl 8 is pretty light at 404g. Equipped with a high capacity 100 watt hour lithium ion battery this is a top of the line battery pack.

But before you buy a dynamo and install it on your bike consider this.