Power Inverter ?

Discussion in 'Millis' started by donaldrogers89, Jun 8, 2013.

  1. Richter

    Richter Road Train Member

    4,090
    1,700
    Feb 13, 2012
    Philadelphia Pa
    0
    More then 1500 doesn't make much sense anyway unless you have a huge alternator.

    The following assumes you can actualy reach the peak ratign of your inveter (would have to have engine reved)

    120 amp alt @ 12 volts = 1440 watts
    150 amp alt @ 12 volts = 1800 watts
    170 amp alt @ 12 volts = 2049 watts
    190 amp alt @ 12 volts = 2280 watts
    200 amp alt @ 12 volts = 2400 watts

    Assuming your alt is putting out higher voltage:

    200 amp alt @ 14.4 volts = 2880 watts.

    Now the inverter has around a 20% loss, so the rated inverter value should be 20% under the power the alternator can output. Clearly you would never have enough power to run a 3000 watt load connected to a 3000 watt inverter. Now lets assume you have 2kwh (2000watt hours) of storage on your starter batts. (that's a lot unless you have deep cycle AGM) If your batts could drain fast enough (not likely) you would only get 40 min of power before your batts completely died. Now on starter batts its bad to go under 70% charged. Going bellow that will likely damage the battery's CCA. Really you have 12 min of power. That's assuming your batts are in peek condition. AGM batts would last longer because they can store more, but will have trouble throwing out all that amperage.

    Long story short, anythign over 1500 on a normal truck with normal starter batts is a waste, because you will never have enough power on the truck to use the additional inverter capacity.
     
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  3. donaldrogers89

    donaldrogers89 Bobtail Member

    28
    1
    Jul 15, 2012
    Western New York
    0
    Wow thats nice. but for someone just getting into school, the likely hood of getting a "New" truck is probably slim to none. Maybe im wrong and please correct me if i am but I probably wouldnt see a "new" truck for a while.

    Thanks for the info. good stuff to know
     
  4. Truck It

    Truck It Light Load Member

    185
    36
    Jun 19, 2012
    0
    They will know, they don't let you install them in their trucks. Millis shop has to install them :) .... they would notice it on a B Service.
     
  5. Truck It

    Truck It Light Load Member

    185
    36
    Jun 19, 2012
    0
    You're are corrct, as of right now as a student coming out you would most likely get a T700 now, there a ton of those and not many of the old 2000's or 660's now. Alot of 680's are coming in lately but guys in the 700's are moving into those.
     
  6. samurai

    samurai Heavy Load Member

    969
    212
    Feb 25, 2012
    Fairborn, OH
    0
    I have so far seen about a handful of new drivers in the new 680s i still have my 700 i got new when i got a truck. i also still do not have a need for an inverter.
     
  7. sapamil

    sapamil Medium Load Member

    419
    135
    Feb 7, 2012
    Middletown Ohio
    0
    I got a new 680 it has a 1800 watt inverter in it it runs every thing plus the kitchen sink
     
  8. donaldrogers89

    donaldrogers89 Bobtail Member

    28
    1
    Jul 15, 2012
    Western New York
    0
    Either way its still a decently newer truck. The one i drive now is a 1990 International. So it will be quite the upgrade. :)
     
  9. sapamil

    sapamil Medium Load Member

    419
    135
    Feb 7, 2012
    Middletown Ohio
    0
    you would probably get a t 700 which is 2011 or 2012
     
  10. TheyCallMeTaterSalad

    TheyCallMeTaterSalad Light Load Member

    57
    22
    Jul 23, 2013
    New York State
    0
    do any of the millis trucks run apus?
     
  11. indianaEMT

    indianaEMT Medium Load Member

    477
    108
    Dec 18, 2011
    Crawfordsville, IN
    0
    None of them have APU'S
     
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