John & Angela wrote:
Howdy Mark. I suspect the amount of current it provides will be dependent on the load at any instant in time. I can't remember if i have ever measured while the inverter was on. (I doubt it though) I would expect the current OP from the alternator would jump up if the inverter was on....even on idle. Yes...No??? Thanks in advance.
marcsbigfoot20b27 wrote:
A lot of nonsense bull shiat talk here!
Most alternators will put out at least 1/2 max output at idle or more.
I just now went out to my old 99 tahoe with a 140 amp output max and checked it at idle with a clamp on amp meter just for this thread.
Yes I have a slightly smaller pulley ( because I need it and know wtf I'm doing ) and it puts out 121 amps at IDLE. Idle is 650 rpms plus the smaller pulley would net about 850 rpm in comparison for a stock vehicle. It is an OEM junkyard used alt I got on eBay to upgrade the stock 100 amp I had.......needed more for my Efans.
ASE Master tech since 91.
It's all a matter of how much the battery/inverter/converter/or load is pulling.
I fired up my truck and it was putting out 31 amps at idle.
I had my battery load tester hooked up also and when activated (100 amp load) it pulled 100 amps plus what the truck/battery was asking for which totaled 131. Alternator only put out 121 at idle.
Problem with charging through the trailer wiring is that it is only 8 ga thickness if that. Running 30-40 feet from the battery to the TT you lose amps/power at a low volt of ~12volts. That's why AC main transmission power lines are 765,000 volts , the higher the volts, the less loss of power over distance and smaller ga wire required.
Google power line voltage.
