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How to hook up a 12-24v system to a battery pack

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  1. Jun 18, 2015 #1
    I'm working on a very similar issue to the one shown below

    https://www.physicsforums.com/threa...-to-change-voltages-and-how-to-charge.514002/

    I've found some batteries that should do the job. i need to keep them fairly small, and the length of charge doesn't matter too much as long as it's not seconds...

    i was just wondering how to figure out what the best amps for the job would be.
     
  2. jcsd
  3. Jun 18, 2015 #2

    mfb

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    Staff: Mentor

    That will depend on the thing you want to power. The required current will then determine which power source is suitable.
     
  4. Jun 18, 2015 #3

    CWatters

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    The devil is in the detail. What do you mean "similar"?

    Got a URL for the LEDs you are using?
    How long do you want them to run off the battery before recharging?
     
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