Advertise on Bikeforums.net



User Tag List

Results 1 to 2 of 2
  1. #1
    Junior Member
    Join Date
    Mar 2011
    Location
    DC area
    Posts
    24
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    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.

  2. #2
    Senior Member
    Join Date
    Oct 2011
    Location
    currently NYC area, previously, Bay Area
    My Bikes
    1974 Raleigh Grand Prix
    Posts
    501
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    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.)

    Quote 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.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •