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burning out alternator

Discussion in 'Lighting' started by achirdo, May 14, 2010.

  1. May 14, 2010 at 11:53 AM
    #1
    achirdo

    achirdo [OP] First Class White Trash

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    I was thinkong of getting 2 off road driving lights then 2 more fog lights, all about 55w. someone told me that running all 4 of those will burn out my alternator in a hurry. is this true? has anyone else heard of that?
     
  2. May 14, 2010 at 11:58 AM
    #2
    PreRunnerSeth

    PreRunnerSeth Well-Known Member

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    Naw.... You will be fine.
     
  3. May 14, 2010 at 11:59 AM
    #3
    DeeKay21

    DeeKay21 Lieutenant Dan.

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    x2. ;)
     
  4. May 14, 2010 at 12:02 PM
    #4
    colinb17

    colinb17 If at first you don't succeed, don't try skydiving

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    good to go. i have two sets of offroad lights (roof and bull bar) and another set of smaller auxilary lights in the bed. with them all turned on it draws abotu 30 amps (i installed an ampere meter). i obviously don't drive with the bed lights on, but i have the off road lights on on a regular basis. no problems after 3 years
     
  5. May 14, 2010 at 11:00 PM
    #5
    achirdo

    achirdo [OP] First Class White Trash

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    So a higher output alternator isn't neccesary? I will be fine running 4 aux lights, head lights, and factory fogs?
     
  6. May 14, 2010 at 11:26 PM
    #6
    Crom

    Crom Time is precious; use it wisely

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    Many, see build thread.
    Like everybody else said, no problem and here's why.

    Each 55w light will draw about 4.6 DC amps each. In total for all four lights your going to have an addition load of 18.4 Amps.

    Our trucks heater fuse is 50 amps. So in theory you could add up to 6-7 x 55w lights to your truck and it would be the equivalent of running your heater on full blast. Although your heater probably only draws 25-30 amps under normal circumstances. It's just that the fuse is 50A.

    If you have the tow package you have a 140 Amp alternator, if you don't then you have a 120 amp alternator.

    When you wire your lights up, you should use a 10amp fuse on each light.

    I hope that helps you.
     
  7. May 15, 2010 at 8:45 AM
    #7
    achirdo

    achirdo [OP] First Class White Trash

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    Do they make aternators bigger than 140amps for the Tacoma? If so how much are they and where can I get them
     
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