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Re: What maximum power inverter for car?

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wrote in message 
news:b16b83b4-4c34-4ccb-a998-6e3e8522f694@googlegroups.com...

On Monday, May 15, 2017 at 9:29:54 AM UTC-7, Carl Ijames wrote:
> wrote in message
> news:b2e24c21-5934-4111-ac97-2ef1d4df4aca@googlegroups.com...
>
> Looking into high power inverter to run off the car.  But for 1000W, it's
> likely draining 80A or 90A from the alternator.  Does that mean the 
> battery
> will die even when the engine is running?
>
> I believe most alternators are around 50A, so max power of 600W?
> =======================================================
>
> Yes, the battery will still be discharging to make up whatever the
> alternator can't source, and yes, the alternator won't be happy for too 
> many
> hours at max output.  I don't know if the low end is really down at 50 or
> 60A , but many cars have alternators rated at 130A or more and I think
> 80-100A is typical. What kind of car do you want to do this with?  Go to 
> an
> auto parts website like autozone.com or rockauto.com and look up a
> replacement alternator for it, and they should list the specs.  For grins 
> I
> chose a 2010 Toyota Camry 4 cyl completely at random and autozone says 
> 100A.
> Make your inverter connection to the output stud on the alternator and
> you'll save the voltage drop in the wire from alternator to battery.

Got a Toyota Sienna.  I think it outputs 50A at idle and 120A at 5000RPM or 
so.  Do i need to step on the gas to get the higher RPM, even when the car 
is not moving?

Perhaps tieing a controller into the throttle when voltage is getting too 
low?
=========================================================

Rockauto and autozone both say a 2015 Sienna has a 150A alternator.  I 
haven't seen any official specs for idle output but you should get full 
output by 2000 rpm or 2500 for sure.  The voltage regulator is listed as 
"internal", but I don't know if the pcm can modulate that or not so it may 
do better at idle than 50A.   I know that on later GM's the pcm controls the 
alternator output but I'm not familiar with Toyotas.  My guess is yes, if 
you want full output to an inverter you will have to step on the gas a bit 
to get the rpms up, and shut off everything you can like headlights, drls, 
and climate control (kill both the compressor and the internal fan).  The 
engine shouldn't overheat but keep an eye on it.  Get a clamp-on dc ammeter 
good for 150-200 A, clip it on the alternator output wire, turn on all the 
loads you can (headlights on bright, foot on the brake, ac fan on max, 
seatwarmers on, anything you can plug into the cigarette lighter like a 
spotlight or air compressor) and see what the output is at idle and above. 
You say 1000W, but is that continuous or an intermittent load?  If it's 
intermittent you could probably get away with idling, and let the battery 
carry it on the peaks.

-- 
Regards,
Carl Ijames

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What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-15 08:14 -0700
  Re: What maximum power inverter for car? "Carl Ijames" <carl.ijamesDDD@EEEverizon.net> - 2017-05-15 12:29 -0400
    Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-15 10:02 -0700
      Re: What maximum power inverter for car? Tim Wescott <seemywebsite@myfooter.really> - 2017-05-15 12:43 -0500
      Re: What maximum power inverter for car? bloggs.fredbloggs.fred@gmail.com - 2017-05-15 10:59 -0700
      Re: What maximum power inverter for car? "Carl Ijames" <carl.ijamesDDD@EEEverizon.net> - 2017-05-15 14:18 -0400
    Re: What maximum power inverter for car? oldschool@tubes.com - 2017-05-15 14:01 -0400
      Re: What maximum power inverter for car? Don Y <blockedofcourse@foo.invalid> - 2017-05-15 14:14 -0700
  Re: What maximum power inverter for car? tabbypurr@gmail.com - 2017-05-15 10:38 -0700
    Re: What maximum power inverter for car? Tim Wescott <seemywebsite@myfooter.really> - 2017-05-15 13:10 -0500
      Re: What maximum power inverter for car? tabbypurr@gmail.com - 2017-05-15 12:56 -0700
  Re: What maximum power inverter for car? Jon Elson <jmelson@wustl.edu> - 2017-05-15 13:53 -0500
    Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-15 13:00 -0700
      Re: What maximum power inverter for car? "Carl Ijames" <carl.ijamesDDD@EEEverizon.net> - 2017-05-15 17:09 -0400
      Re: What maximum power inverter for car? Don Y <blockedofcourse@foo.invalid> - 2017-05-15 14:15 -0700
        Re: What maximum power inverter for car? mike <ham789@netzero.net> - 2017-05-15 17:34 -0700
          Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-15 17:41 -0700
            Re: What maximum power inverter for car? Don Y <blockedofcourse@foo.invalid> - 2017-05-15 18:14 -0700
              Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-15 19:34 -0700
          Re: What maximum power inverter for car? Don Y <blockedofcourse@foo.invalid> - 2017-05-15 18:10 -0700
      Re: What maximum power inverter for car? Jon Elson <jmelson@wustl.edu> - 2017-05-15 16:28 -0500
      Re: What maximum power inverter for car? tabbypurr@gmail.com - 2017-05-15 15:43 -0700
        Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-15 17:44 -0700
          Re: What maximum power inverter for car? tabbypurr@gmail.com - 2017-05-15 17:59 -0700
            Re: What maximum power inverter for car? Chris Jones <lugnut808@spam.yahoo.com> - 2017-05-16 21:40 +1000
              Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-16 08:03 -0700
                Re: What maximum power inverter for car? tabbypurr@gmail.com - 2017-05-16 09:08 -0700
                Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-16 09:19 -0700
                Re: What maximum power inverter for car? tabbypurr@gmail.com - 2017-05-16 09:36 -0700
                Re: What maximum power inverter for car? Jon Elson <jmelson@wustl.edu> - 2017-05-16 13:34 -0500
                Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-16 12:52 -0700
                Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-16 13:27 -0700
                Re: What maximum power inverter for car? Ralph Barone <ralph@invalid.com> - 2017-05-17 02:26 +0000
                Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-16 21:50 -0700
                Re: What maximum power inverter for car? "Carl Ijames" <carl.ijamesDDD@EEEverizon.net> - 2017-05-17 10:46 -0400
                Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-17 22:31 -0700
                Re: What maximum power inverter for car? "Carl Ijames" <carl.ijamesDDD@EEEverizon.net> - 2017-05-18 10:26 -0400
                Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-18 08:23 -0700
                Re: What maximum power inverter for car? Jon Elson <jmelson@wustl.edu> - 2017-05-17 13:59 -0500
                Re: What maximum power inverter for car? Ralph Barone <ralph@invalid.com> - 2017-05-18 01:02 +0000
                Re: What maximum power inverter for car? "Carl Ijames" <carl.ijamesDDD@EEEverizon.net> - 2017-05-16 15:34 -0400
                Re: What maximum power inverter for car? mike <ham789@netzero.net> - 2017-05-16 15:48 -0700
                Re: What maximum power inverter for car? Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-05-16 13:05 -0400
                Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-16 11:12 -0700
      Re: What maximum power inverter for car? Jasen Betts <jasen@xnet.co.nz> - 2017-05-23 07:02 +0000
        Re: What maximum power inverter for car? edward.ming.lee@gmail.com - 2017-05-23 07:29 -0700
  Re: What maximum power inverter for car? Don Y <blockedofcourse@foo.invalid> - 2017-05-15 14:09 -0700
  Re: What maximum power inverter for car? Jasen Betts <jasen@xnet.co.nz> - 2017-05-23 06:43 +0000
    Re: What maximum power inverter for car? Neon John <no@never.com> - 2017-05-27 12:49 -0400

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