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 > Your search for posts made by 'pianotuna' found 1752 matches.

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RE: 6 or 12 That is the question

Which is better-- 2x6V deep cycle or 2x12V deep cycle for boondocking? My setup right now is 2x6V which gives me 260 ah. I found 2x12V that will give me (2x150=) 300ah. Are the 12's really better than the 6's? If you have HIGH draws yes the 12 volt are better (though probably not cheaper) If you don't have high draws, the 6 volts may have greater cycle life.
pianotuna 08/03/21 11:01pm General RVing Issues
RE: Dashboard Alternator light

eric, Alternators are rated in amps. Mine is 130 amps. However they are not made to run 'flat out'. The "usual" number (so I'm told by others) is about 1/3 continuous. So my 130 amp alternator can really only provide about 43 amps continuous. Of course, some amps are needed to keep the engine and other devices working. There ARE continuous output alternators, but they may be a big chunk of change. There are also external diodes that can be added on. But that is beyond my skill set. That is why one needs to know the peak output of the alternator--and then not take it up to that for very long. Generally with modern vehicles the computer (ecu) decides what alternator output needs to be to recharge the chassis battery after starting. That doesn't take very long, so house bank charging is often slow. I do have a dc to DC charge controller--but it is not yet installed. I chose to use one that is limited to 20 amps output, because the input may well be 30 amps. The dc to DC boosts the voltage so that the house bank will charge faster. In other words, it over rides the ecu and draws more amps from the alternator. It does this by raising the output voltage--so more amps will flow. Renogy makes one that is a 40 amp output--but which has a jumper that can be removed to limit it to 20 amps. If you want a "top drawer" device Victron makes one, too. BFl13 has a unit from Renogy and it works well for him.
pianotuna 08/03/21 08:46pm Tech Issues
RE: Talk about voltage drop (12v)

14 to 12 is a 15% difference
pianotuna 08/03/21 07:25pm Tech Issues
RE: Dashboard Alternator light

eric, That is exactly what a dc to DC charge controller does--it is a diode--but one that can pass a lot of amps. Now you need to know the duty cycle and the amps output of the alternator
pianotuna 08/03/21 07:21pm Tech Issues
RE: Dometic AC

Do check the voltage under load. If it is below 108 then do not run the air conditioner. I recommend a Kill-a-watt meter.
pianotuna 08/03/21 04:24pm Travel Trailers
RE: 6 or 12 That is the question

If they plan on running the inverter I'd go 12 volt. One reason is 50% less demand on each cell. If they want to just charge small items--then a 2000 watt inverter is over kill and they would be better to use a 300 watt inverter with six volts. You pay your money and you take your chances! I've always done 12 volt because I want to use a LARGE inverter/charger so I can use it for load support.
pianotuna 08/03/21 04:14pm General RVing Issues
RE: Talk about voltage drop (12v)

#10 wire would be much better. I would expect 7.5% voltage drop with 15 feet of #14 and the loads.
pianotuna 08/03/21 04:06pm Tech Issues
RE: Why do I keep blowing out tires on my truck?

My local Goodyear dealer suggested Toyo to me. I've had excellent service from them.
pianotuna 08/03/21 03:53pm Tow Vehicles
RE: Dashboard Alternator light

eric, It gives you control over whether there will be charging or not. Personally I'd put a dc to DC charger in.
pianotuna 08/03/21 03:51pm Tech Issues
RE: Can I rent your RV?

I recommend against it. Even with family there can be issues. I was in a family partnership. I wanted upgrades--the other "owner" did not. The other owner took it on long long long trips. I was concerned even though there was a "mileage charge" that went into a repair fund.
pianotuna 08/03/21 01:09pm General RVing Issues
RE: Air conditioning article

Keytag, I was invited to write a series of articles on Solar. My reward was the pleasure and being asked to do so. The article is flawed and could be improved. But it is no less valuable. I've not looked at AC units for some time and to find another couple of DC units is worthwhile. I do question the swamp cooler. It seems quite pricey for what it is. But then, growing up a bottle of coke was only a dime (or 5 cents at a school dance) makes me frugal.
pianotuna 08/03/21 01:02pm Truck Campers
RE: Dashboard Alternator light

Hi, Just look at the solenoid. There are two skinny wires. Put a switch in the positive lead.
pianotuna 08/03/21 12:54pm Tech Issues
RE: Air conditioning article

Are you using those Sio2 batteries yet, looks interesting. valhalla360 suggested the chart. With covid preventing me from picking them up--and income in a nose dive for the same reason, I'm going to wait a year. I may do massive solar first as well.
pianotuna 08/03/21 11:33am Truck Campers
RE: On street parking problems Portland

bgum, Have you lived on that slim amount of money for a couple? I knew someone who had a trustee managing their (slim) funds. He could get shoes every 2 years. The trustee was paid out of those slim funds, too. Not much fat.
pianotuna 08/03/21 10:36am Travel Trailers
RE: Dashboard Alternator light

I have manual control over my charging solenoids.
pianotuna 08/03/21 10:29am Tech Issues
RE: Air conditioning article

Thanks for the link. Mello Mike is one of the good guys imo. Keytag is right about having a chart. He often offers good advice.
pianotuna 08/03/21 10:21am Truck Campers
RE: On street parking problems Portland

Never give to a panhandler. It only encourages more of the same. Living off the fat of the land. I think the fat is pretty much zero.
pianotuna 08/03/21 09:26am Travel Trailers
RE: Elect. start generator.

I think we may run over to C, W, and check out the small Honda with a starter . I am on 4.5 l of o2 the batteries for my unit last about an hour. with 4 of them I think my best bet ie the inverter generator.The batteries cost right at 1,000 each. the cost about evens out. Wednesday a over one hundred Edd is going to shut of power for maint. Elect in cal is a joke... Hi Don & Barb, I have a Yamaha 3000 sIEB. If I were buying today I would purchase the Champion 3400 with remote electric start. I would add a trik-l-start to keep the battery up for the remote feature.
pianotuna 08/02/21 10:27pm Tech Issues
RE: On street parking problems Portland

Hi, The reno shelter is apparently sized for 450 folks. A good start. The print article says 900--but the video says 450. https://www.rgj.com/story/news/2021/05/10/nevada-cares-campus-reno-areas-new-shelter-set-open-may-17/5026158001/
pianotuna 08/02/21 09:34pm Travel Trailers
RE: Dashboard Alternator light

eric, I think you mentioned you use a trik-l-start. If wired between house bank and chassis battery there will be up to 5 amps of charging. This would also happen with the generator powering the converter. Let me know if I am not remembering correctly.
pianotuna 08/02/21 09:25pm Tech Issues
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