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Old 01-12-12, 09:39 PM   #1
hardyt
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Need electrical advice - dynamo light set with rechargeable batteries -> capacitor?

Hi, There's a cheap dynamo LED light set with rechargeable batteries here: http://www.energystead.com/wind-n-go-bicycle-light-kit/
An Amazon review reports it carries 4 AAA rechargeable batteries. Because this set will only get occasional use can I replace all four batteries with one hi-capacitance capacitor like this one: http://www.alliedelec.com/search/pro...5#tab=overview
to maintain a standlight effect?

The set is in the mail. If you need other specs let me know and I will post them.
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Old 01-12-12, 10:45 PM   #2
christ0ph
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A capacitor is not a battery replacement, but its appropriate for a standlight. But there are major differences.. a battery will to a large extent smooth voltage, a capacitor will just charge to the highest voltage that hits it, if diodes are involved.(and they would have to be to charge either one from an AC source like a dynamo.)

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Originally Posted by hardyt View Post
Because this set will only get occasional use can I replace all four batteries with one hi-capacitance capacitor like this one: http://www.alliedelec.com/search/pro...5#tab=overview
to maintain a standlight effect?

The set is in the mail. If you need other specs let me know and I will post them.
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