Forum Discussion
BFL13
Jan 15, 2018Explorer II
ktmrfs wrote:
is there a way to enable a high idle on the MH? something on the order of 1200 rpm or so. If so, you may be able to get more out of the alternator, higher voltage and more current. Alternators are rated for max output at a fairly high rpm, well above engine idle.
Still not an ideal way to charge batteries, but does make a difference.
All I got from a higher idle was fewer amps to the house battery. I think the engine stuff then needed more of what the alternator supplied, so the house sucks hind tit.
I do see that alternators including the Ford 3G ones, have a higher amps rating for when revved up.
"find 3Gs in pick-your-parts boneyards that put out 90-100 amps at idle and up to 160 amps at highway operating speed."
My 2G is apparently rated around 60-75 amps, so that 37 amps I got at first seems decent? No idea really as to what is "normal" with these things.
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