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General Discussion / Re: 6 volt vs. 12 volt
« Last post by IBTripping on Today at 01:58:18 AM »

It might be easier to look at how much power is stored in the battery.  Power is Voltage x Current (in Amps or Amp-Hours) to give Watts or Watt-hours.  Your home utility charges you by the Kilowatt-hour, or 1000 watt-hours.

What you're missing is a 6 volt battery of similar footprint to a 100 amp-hour 12 volt battery will have 200 amp-hours capacity at 6 volts, not 100 amp-hours.  6 volts x 200 amp=hours = 1200 watt-hours.  Put two in series and you'll have 12 volts x 200 amp-hours, or 2400 watt-hours.

And only store half as much power as a pair of 6 volt batteries - 12 volts x 100 amp-hours = 1200 watt-hours.  You'll need two connected in parallel to equal the capacity of a pair of 6 volt batteries of similar physical size.

I added "of similar physical size" because some people will cite an example of a 12 volt battery that gives the same amp-hour performance as a typical 6 volt battery.  They exist, but they're twice the size and twice the weight as a similar amp-hour 6 volt battery.

I think I'm getting a better understanding of 6v vs. 12v. My TT is a 12 volt system. To use 6v I'd need at least a pair wired in series which equals 12 volts. But, according to Karl Kolbus in the library: "We mentioned earlier that some RVs might come equipped with two 6-volt batteries.
Unless it is a very, very old RV (think 1940s), we can be pretty sure that they are wired in
series to produce twelve volts. The positive (+) terminal of the left battery is connected to
the negative (-) terminal of the one on the right. Again assuming each battery is capable of
outputting 100 ampere-hours, you might think that the total capacity would be 200Ah, but
that would not be correct. When batteries are wired in series, only the voltages of the
individual batteries are added together (6 + 6 = 12 volts), not their capacity. The capacity
remains at 100Ah
." (Emphasis added).

I don't understand why a pair of 6v 100AH each, wired to produce 12 volts, only has 100AH. But, I don't need to know why. What's important to me is that one 12v 100AH battery costs less than two 6v 100AH batteries. Either option gives me only 100AH. And, as the Kolbus article notes, if I have more than  two 12v batteries, I'll need to connect them in parallel so I don't end up shooting 24v into my TT.
2
Boondocking / Re: Composting Toilet
« Last post by Isaac-1 on October 22, 2018, 10:55:17 PM »
That second video above really makes me not want one
3
Boondocking / Re: Composting Toilet
« Last post by Arch Hoagland on October 22, 2018, 10:44:44 PM »
$5,000 toilet....wow.  Talk about flushing your money down a toilet.

Keep us updated on what you finally decide to do.
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Trailers & Fifthwheels / Re: Free Air Antenna
« Last post by NY_Dutch on October 22, 2018, 10:34:51 PM »
The UHF element in the Sensar antennas without the Wingman is just a small folded di-pole section of the batwing.
5
Newcomers' Corner / Trailer Hitch
« Last post by Golden Life on October 22, 2018, 10:08:59 PM »
First time owner of a new travel trailer. We picked it up Friday and went to a local state park for our first go at camping. Loved it and cant wait to go again.  Our RV dealer installed a 10K pound tow hitch onto my F-150 for our 24 trailer. When not towing, that thing sticks out like a sore thumb.  My question is it too much trouble taking it off in between trips and should I just get used to the sight of it.  Wed like to go out local camping at least one weekend every four to six weeks. Thanks in advance!
6
General Discussion / Re: Strange Fresh Water Problem !#@!!
« Last post by NY_Dutch on October 22, 2018, 10:06:09 PM »
If the pump is any of the common Shurflo models, they certainly are repairable. The check valve is sold as a separate item for most models. But if it's in warranty and the dealer wants to replace the whole thing, let them. Just know that's usually not really needed later on if it happens on your dime.
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Making music on the road / Family holiday singalongs
« Last post by Tom on October 22, 2018, 09:43:22 PM »
I'm updating/broadening the family singalong portfolio in preparation for the upcoming holidays. Grandkids, their parents and other adults enjoy these events. This year we'll miss some musicians from the extended family, but should still have a great time. I'm thinking of inviting neighbors at our winter retreat to join us.

In prior years I've played a ukulele. Since we won't have a guitarist this year, I've dusted off a couple of guitars and attempted to regain muscle memory. Since we won't have a banjo player, I'm trying to decide if I'll haul my plectrum banjo or a banjo ukulele.
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Rallies, Shows, & Events / Re: Death Valley rally November 4-11 2018
« Last post by cadee2c on October 22, 2018, 09:34:52 PM »
My plan is to leave on Saturday, stopping for one night in Ft Stockton, Deming, Mesa, then in Pahrump. I would like to stop there for a couple of days to do laundry and fill and dump tanks etc. There is an escapees park there, but they dont take reservations. Anyone know what the chances are of them having a spot there or are they pretty full up? I should be there on the 30th.
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Motorhomes / Re: Procedure for recharging/starting Motorhome after a year sitting.
« Last post by rrfpacker on October 22, 2018, 09:31:57 PM »
First there are two DIFFERENT types of batteries (Out of 3 possible types) for a motor home

The chassis battery is likely a STARTING battery  I would charge using a charger in the 10-20 amp range  YOu may need to use a "Dumb charger" for like a an hour then switch to a "Smart" charger

I use a 2/20/70 amp Deltran Battery tender.. 70 is for jump starting cars.

IT will auto switch from 20 to 2 when batteried are full

The starting battery may have been seriously damaged if it is very dead.. So.. You may need to replace it.

The house batteries. Same charger.. But you may not have to replace. .The odds of recovery though not as high are better.. That is they are 6Volt deep cycle pairs (two in series giving 12 volt) If they are MARINE/Deep cycle the odds are not nearly as good.

Thank you for this. FYI, there are two chassis batteries, 6volt wired in series. Do I need to charge each one separately or can I put the charger cables on one and it will charge both?

thank you
10
The Shade Tree / Re: Need the best GPS
« Last post by Rene T on October 22, 2018, 09:29:07 PM »

Rene, the 21" isn't available until next year

I'll wait.   :o ::) :P :-[ :'(
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