I'm standing at the counter of an alternator rebuilder, and the guy is buying a very expensive 300 amp brushless alternator.
"What are you going to power with this?"
"My motorhome."
"Oh. What are you going to drive the alternator with?"
"An electric motor."
"What powers the electric motor?"
"The batteries."
Oh my......
Ya can't fix stupid...
Whoa, it's like DEI for electric power systems! 
This seems appropriate.
Holy crap, this is great!
Should've powered the electric motor with solar panels, obviously. Duh.
he probably has this setup at his house too:
So I like to ask questions. One being, could there actually be a purpose to what the guy is doing? As such: direct current from the batteries to the direct current motor. Motor spins alternator and gets alternating current out of it?!? Where does the rectification usually happen in a car's charging system? Would he be getting 12 VAC out of it? Could he be getting 120VAC out of it? It could be a nice and quiet way to get 120VAC and not be limited by a noisy gas generator. Big bank of batteries, a couple of solar panels and the vehicle engine adding some charge when it's running.
RossD wrote: So I like to ask questions. One being, could there actually be a purpose to what the guy is doing? As such: direct current from the batteries to the direct current motor. Motor spins alternator and gets alternating current out of it?!? Where does the rectification usually happen in a car's charging system? Would he be getting 12 VAC out of it? Could he be getting 120VAC out of it? It could be a nice and quiet way to get 120VAC and not be limited by a noisy gas generator. Big bank of batteries, a couple of solar panels and the vehicle engine adding some charge when it's running.
Hmm. Your ideas are intriguing to me and I wish to subscribe to your newsletter.
In reply to slefain:
I feel like this is the point where I disappoint you by throwing cats at you. 
RossD wrote: So I like to ask questions. One being, could there actually be a purpose to what the guy is doing? As such: direct current from the batteries to the direct current motor. Motor spins alternator and gets alternating current out of it?!? Where does the rectification usually happen in a car's charging system? Would he be getting 12 VAC out of it? Could he be getting 120VAC out of it? It could be a nice and quiet way to get 120VAC and not be limited by a noisy gas generator. Big bank of batteries, a couple of solar panels and the vehicle engine adding some charge when it's running.
That could work, but it's still dumb. There's already an efficient and affordable way to get AC power from a DC source, no moving parts required - it's called an inverter.
In reply to GameboyRMH:
Especially if that guy paided $300 for the alternator. A $300 inverter is actually a pretty nice inverter.
Maybe he wishes to possess a 300 amp trail rated tig welder?
BoxheadTim wrote: Should've powered the electric motor with solar panels, obviously. Duh.
My brother in law wanted to get solar panels for his motorhome, so he could recharge his batteries overnight. Long, awkward silence ensued.
RossD wrote: In reply to slefain: I feel like this is the point where I disappoint you by throwing cats at you.
I am highly intrigued by this "throwing cats" thing. Please tell me more!
Turboeric wrote:BoxheadTim wrote: Should've powered the electric motor with solar panels, obviously. Duh.My brother in law wanted to get solar panels for his motorhome, so he could recharge his batteries overnight. Long, awkward silence ensued.
What he needs are them new fangled lunar panels.
Turboeric wrote:BoxheadTim wrote: Should've powered the electric motor with solar panels, obviously. Duh.My brother in law wanted to get solar panels for his motorhome, so he could recharge his batteries overnight. Long, awkward silence ensued.
dammit … you own me a keyboard … and for those that don't know, coffee out the nose hurts
1988RedT2 wrote:RossD wrote: In reply to slefain: I feel like this is the point where I disappoint you by throwing cats at you.I am highly intrigued by this "throwing cats" thing. Please tell me more!
Lunar panels. I'm totally using that term somewhere.
Were there any Amys involved
I found a lunar panel:
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