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12v heater

Discussion in 'Trucking Electronics, Gadgets and Software Forum' started by asphaltreptile, Nov 4, 2013.

  1. Nov 4, 2013 #1
    asphaltreptile

    asphaltreptile Bobtail Member

    26
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    Sep 13, 2013
    0
    How long can I run a 12v heater in a Parked car before the battery dies
     
    asphaltreptile, Nov 4, 2013
    asphaltreptile, Nov 4, 2013
    #1
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  3. Nov 4, 2013 #2
    Richter

    Richter Road Train Member

    4,090
    1,700
    Feb 13, 2012
    Philadelphia Pa
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    not long. Depends on the amperage the heater draws and what kind of batts yo have. In most care maybe a few hours. In a truck a bit longer
     
    Richter, Nov 4, 2013
    Richter, Nov 4, 2013
    #2
  4. Nov 5, 2013 #3
    snowwy

    snowwy Road Train Member

    20,537
    13,274
    Jul 6, 2009
    0
    a good working alternator and good battery will last 2 hours. running headlights.

    maybe longer with today's higher amp batteries.

    my last motorcycle went an hour. but those are smaller amps.

    i did a drive from pocatello, id. to salt lake, ut. with the alternator unplugged. 170 miles at 55 mph. headlights on. only got 140 miles before the car started sputtering. plugged in the alternator and went home. 55 was the speed limit back then. and i don't think 12v heaters existed.

    but i'll see if i can find a link on the internet to back that information up.
     
    snowwy, Nov 5, 2013
    snowwy, Nov 5, 2013
    #3
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