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Front, rear, and side lighting for your bike as well as helmet lights. Incandescent and LED lights. Dynamo hubs, rechargeable batteries, and step-down circuits from ebike batteries are also included as long as they result in the production of light.
2
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How to replace a bottle dynamo with batteries
I have a bike using a bottle dynamo.
It works ok but I just use the light when it's absolutely needed because the dynamo really slows down the bike.
I would like to make the bike run with batteries, …
2
votes
How to replace a bottle dynamo with batteries
I solved this by attaching a USB connector to the existing light circuit, and power everything with a cheap cellphone power bank.
You just need a USB (possibly broken) cable whose "computer" end is wo …