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DIY system for charging battery packs from hub dynamo

The "Forumslader" (German site) is a semi-commercial semi-DIY dynamo charger. Schematics for older versions are available. This very detailed article by Olaf Schultz, also in German, ...
Erlkoenig's user avatar
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3 votes

DIY system for charging battery packs from hub dynamo

Most Dynamos are 6V, 3W output, you would need to know the specs for yours. Amazon/Aliexpress etc have heaps of 6-24V input to USB output devices for a couple of dollars. You can also get a 0.9-5V ...
mattnz's user avatar
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13 votes
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DIY system for charging battery packs from hub dynamo

Decathlon uses a third party part, that is available for sale if you want to fit it on your bike: Cycle2Charge The category name for this kind of products is "headset cap USB charger" or &...
Renaud's user avatar
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