Espar power drain

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by tnc110, Dec 5, 2022.

  1. tnc110

    tnc110 Light Load Member

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    May 22, 2016
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    Just curious as to if anyone else is running into what I’m running into. I have 3 brand new batteries. On cold nights they don’t make it through the night without the low voltage alarm going off, which comes on at 11.6 volts. This is in a flat top Pete with the curtain pulled shut so it’s not a big area. Power draw for d2 claims to be:
    8.3 amps - Start
    2.8 amps - Boost
    1.9 amps - High
    1.0 amps - Medium
    0.7 amps - Low
     
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  3. DUNE-T

    DUNE-T Road Train Member

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    Why do u think it's Espar and not something else?
     
  4. tnc110

    tnc110 Light Load Member

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    58
    May 22, 2016
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    good point. I do have a fridge that pulls 5 amp on occasion , but it’s only .35 kWh/24hr. 2022 389 with a cat…not sure what all runs in the background that I’m not aware of. Phone charger. Everything else gets turned off.
     
  5. dunchues

    dunchues Medium Load Member

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    Mar 23, 2012
    new brunswick
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    There's a setting on the control panel that sets the heaters low voltage shut off level, yours is prob on 12.5 or something. With mine I use a paper clip in the tiny hole on the front which brings up change settings on the screen, then change to suit.
     
  6. Last Call

    Last Call Road Train Member

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    Mar 15, 2021
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    You got a 2022...389.. with a Cat ???
    Gota be glider ??
     
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