portable car booster schematic

Discussion in 'General Electronics Chat' started by lokeycmos, Feb 25, 2011.

  1. lokeycmos

    Thread Starter Active Member

    Apr 3, 2009
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  2. tom66

    Senior Member

    May 9, 2009
    2,613
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    As far as I know, I thought they were just a big battery with a built in charger in a carrying case, but I could be mistaken.
     
    Last edited: Feb 26, 2011
  3. Adjuster

    Well-Known Member

    Dec 26, 2010
    2,147
    301
    Some of these things may contain a high current buck/boost SMPS, to control the current flow and also to make available more of the spare battery capacity.

    Edit: On second thoughts if the unit actually offers cranking current as in the OP's link it probably is just a battery - the currents involved are so horribly big.

    Not an ideal home project in my opinion, too much opportunity for expensive or hazardous mistakes.
     
  4. debe

    Senior Member

    Sep 21, 2010
    1,035
    214
    They are only a sealed battery & builtin jumperleads & a crude led battery level indicator. Chargers are usualy a wall wart.
     
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