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Making a battery pack for my ipod.

Discussion in 'Electronic Basics' started by None, Dec 10, 2005.

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  1. None

    None Guest

  2. Figaro

    Figaro Guest

    that Drew Perry articles says the iPod is rated 8-30 volts
    - a power regulator is unnecessary; a regulator would only add losses.

    another thing, why not use eight 1.5 volt batteries in series instead of
    combo 1.5 and 9 volt batts?
    they probably take up just as much space but provide more energy.

    |i fond this thing on how to make a battery pack for my ipod..
    |
    | http://www.chrisdiclerico.com/2004/10/24/ipod-altoids-battery-pack-v2/
    |
    | he said that it would be a good idea to include a "power regulator
    | circuit board" and i have no idea how to make one...could u guys
    | explain how or point me to a website that shows how? thanks

    that Drew Perry articles says the iPod is rated 8-30 volts
    - a power regulator would be unnecessary;
    a regulator would also be undesireable - they only result in additional
    losses.

    another thing, why not use eight 1.5 volt batteries in series instead of
    combo 1.5 and 9 volt batts?
    eight 1.5's probably take up just as much space but provide more energy.
     
  3. None

    None Guest

    thanks! y would the 8 1.5v provide more power..and 1.5v batteries are
    AA right?...this is probably a stupid question, but..when the batteries
    run out of power the voltage woud drop down to below the 8-30 volts
    range...so having a below normal voltage when the batteries die wouldnt
    cause any harm to the ipod, only having a higher than 30...right?
     
  4. David Harmon

    David Harmon Guest

    On Sat, 10 Dec 2005 16:06:45 -0500 in sci.electronics.basics,
    Yes, for best results in ordinary circumstances all batteries that
    are used in series should be of the same type.
     
  5. Figaro

    Figaro Guest

    | thanks! y would the 8 1.5v provide more power..and 1.5v batteries are
    | AA right?...this is probably a stupid question, but..when the batteries
    | run out of power the voltage woud drop down to below the 8-30 volts
    | range...so having a below normal voltage when the batteries die wouldnt
    | cause any harm to the ipod, only having a higher than 30...right?
    |

    1) yes, my estimate is 8 AA's would provide more energy than AA/C combo

    2) the batteries shown by Drew Perry look like AA's. Of course, you can
    use other 1.5 volt batts like size D and C. They will even provide more
    energy but will be much bigger in size.

    Also, I saw 8 cell "AA" battery holders at:

    http://www.thomas-distributing.com/battery-holders.htm

    3) i don't think it will harm the iPod when the voltage drops to 8 volts or
    lower.
    yes, it can do harm to exceed 30 volts.
     
  6. Dan

    Dan Guest

    so if i got the 8 cell holder all i would have to do is sodder (sp?) it
    into the fire wire head then? and if i got two 4 cell holders (wich
    ever takes up less space) would i just need to sodder the two cells
    togeather and then sodder them to the firewire head?
     
  7. Jasen Betts

    Jasen Betts Guest

    AA (and AAA, and, C, D) are 1.5V

    ....this is probably a stupid question, but..when the batteries
    they's have to go down to 1V per cell to be at 8V, when they get below about
    1.3V they're don't have much energy left in them.

    if you're using rechargable AA cells these are typically 1.2-1.25 volts per
    cell but are depleted at 1V per cell, so 8 would be the right number to use
    there too.
    yeah, I expect below 8V the sound quality decreases and probably somewhere
    near 6 of 7 volts it just goes to sleep.
     
  8. Figaro

    Figaro Guest

    | so if i got the 8 cell holder all i would have to do is sodder (sp?) it
    | into the fire wire head then? and if i got two 4 cell holders (wich
    | ever takes up less space) would i just need to sodder the two cells
    | togeather and then sodder them to the firewire head?
    |

    One way would be: http://salaginto.home.comcast.net/iPod_ps.jpg

    This drawing shows two Radio Shack 4-cell holders; these holders
    supposedly have color-coded lead (red and black). Red should
    be (+) and black (-). Connect the holders to one another and to the
    firewire connector RFS-6602 as shown.

    The Radio Shack holder is shown on: http://snipurl.com/koev

    This should work if your iPod works like Drew Perry's iPod.

    (btw, it's pronounced "sodder" but spelled "solder")
     
  9. Dan

    Dan Guest

    thanks!!!.....spellings not my cup of tea lol :p
     
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