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
    300
    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

    Well-Known Member

    Sep 21, 2010
    946
    184
    They are only a sealed battery & builtin jumperleads & a crude led battery level indicator. Chargers are usualy a wall wart.
     
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