I have a working lightning system on my bike with wired front and rear lights, powered by a dynamo. The dynamo's plastic has broken and I have repaired it several times now, but now it is FUBAR.
Thinking about a replacement, I wondered if it would be possible to just connect some batteries to the dynamo cables. AFAIK the usual voltage for dynamo powered lights is 6 volts, so if I were to add 4 normal batteries (4 x 1.5 = 6) in series, and connect this to the power cables, would it work? Or are there other things to consider?
Both front and rear light are LED lights; the rear light has a capacitor to maintain illumination even when you stop.
I would use a battery holder like the one pictured below, and rechargeable AA batteries, since I have a lot of them already.
If you have any other suggestions on how to do this, I look forward to hearing them!
I want to do this because I have had issues with rim dynamos in the past, and just want a reliable power source; and I am too lazy to install a hub dynamo. It is also a cost issue; I already have the rechargeable batteries, but would have to buy a new dynamo. This is my city bike; it could be stolen at any time, so I do not want to invest a lot of money in components.