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Will this work to increase running time of battery

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Discussion in 'General Electronics Discussion' started by mrel, Aug 24, 2019.

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  1. Aug 24, 2019 #1
    mrel

    mrel

    96
    0
    Jul 2, 2008
    Hello



    Got 100 amp hour ,12 volts AGM battery.

    Will this increase running time of of 12 volts battery, using LED 12 volts ,10 watts led.

    if I get buck converter board to drop the 12 volts battery volts to 5 volt,
    and hookup Boost converter board to buck converter board to boost the 5 volts to 12 volts will this extend the battery running time longer since the battery only put out 5 volts and boost converter is creating 7 volts to make total 12 volts .
    Will this work?
    mrel
     
  2. Aug 24, 2019 #2
    Kiwi

    Kiwi

    344
    85
    Jan 28, 2013
    Afraid not, it will be worse.
    You will lose efficiency converting 12v to 5v and then again boosting 5v back to 12v.
     
    davenn likes this.
  3. Aug 24, 2019 #3
    Audioguru

    Audioguru

    3,082
    691
    Sep 24, 2016
    Converters work hard and produce some heat. The heat is wasted power from the battery.
    Does your 10W LED have something to limit its current? Please post a link to the datasheet of the LED.
     
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