Camping without hookups: One Battery or Two?

Here's where we keep the polls, and anyone can start a poll!

Does your 12-volt system have one battery or two?

One battery – never wanted more.
34
58%
One battery – sometimes wish I had two.
3
5%
Two 12-volt batteries wired in parallel = 12 volts.
15
25%
Two 6-volt batteries wired in series = 12 volts.
7
12%
 
Total votes : 59

Re: Camping without hookups: One Battery or Two?

Postby Bogo » Wed Jan 02, 2013 5:14 pm

Would be better and more meaningful to ask overall amp hours @12VDC. Different battery sizes have different capacities.
User avatar
Bogo
500 Club
 
Posts: 658
Images: 39
Joined: Tue Oct 02, 2012 4:32 pm
Location: The land between two rivers.

Re: Camping without hookups: One Battery or Two?

Postby 48Rob » Wed Jan 02, 2013 6:43 pm

As far as conserving power goes, we're out to have a good time, so another battery just makes more sense.


If you wanna be Daniel Boone and go camping with candles, cool! :thumbsup:

If you want to use up lots of power while camping or touring having extra batteries is cool too! :thumbsup:

As has been pointed out; while polls are fun and sometimes informative, when it comes to sizing the electrical system for your trailer, other people's opinions will be great guidelines...for their usage, but not yours.

The math isn't hard to do.

Rob
Waiting for "someday" will leave you on your deathbed wondering why you didn't just rearrange your priorities and enjoy the time you had, instead of waiting for a "better" time to come along...

Visit Rob's World Web Page!
User avatar
48Rob
Super Lifetime Member
 
Posts: 3862
Images: 4
Joined: Thu Nov 17, 2005 6:47 pm
Location: Central Illinois

Re: Camping without hookups: One Battery or Two?

Postby GuitarPhotog » Mon Sep 02, 2013 12:14 am

One 60 Ah Deep Cycle AGM sealed battery.

The longest I've gone between charges is 7 days of camping and the charge level was down to ~80%.

I don't anticipate ever needing more power than that in my teardrop, but I'm not running: radio or television, heater, electrical cooler, cpap machine...

<Chas>
:beer:
GuitarPhotog
Silver Donating Member
 
Posts: 1668
Images: 55
Joined: Tue Feb 08, 2011 12:52 pm
Location: Grants Pass Oregon
Top

Re: Camping without hookups: One Battery or Two?

Postby S. Heisley » Mon Sep 02, 2013 1:42 am

48Rob wrote:
As far as conserving power goes, we're out to have a good time, so another battery just makes more sense.


If you wanna be Daniel Boone and go camping with candles, cool! :thumbsup:

If you want to use up lots of power while camping or touring having extra batteries is cool too! :thumbsup:

As has been pointed out; while polls are fun and sometimes informative, when it comes to sizing the electrical system for your trailer, other people's opinions will be great guidelines...for their usage, but not yours.

The math isn't hard to do.

Rob



Rob is correct. For instance, many of us built "BL" (Before LED's were useful) and may, therefore, have more battery power than we really need, now that we have converted. LEDs have made a big savings on battery drain. Yet others among us use solar power to replenish our batteries while out camping.

To find out what you need, add up the Amps for what you and those camping with you expect to use in one day, under max conditions, and then add another 30% to that total because you should never drain your battery down past 30%. (It wears it out faster.) Take that total and multiply it by the maximum number of days that you expect to be off grid. That should give you a pretty good idea of what size battery you need. Best Wishes!
User avatar
S. Heisley
Super Lifetime Member
 
Posts: 8083
Images: 488
Joined: Mon Sep 17, 2007 10:02 am
Location: No. California
Top

Re: Camping without hookups: One Battery or Two?

Postby S. Heisley » Mon Sep 02, 2013 1:48 am

One more thing to consider (I didn't check to see if someone already mentioned this). When you have more than one battery, if one battery goes bad, it is always suggested that you replace both because having one battery weaker than the other can cause problems. Replacing two batteries could be more expensive and more hassle. For that reason, I think it is better to have one big battery rather than two smaller batteries wired in tandem.
User avatar
S. Heisley
Super Lifetime Member
 
Posts: 8083
Images: 488
Joined: Mon Sep 17, 2007 10:02 am
Location: No. California
Top

Re: Camping without hookups: One Battery or Two?

Postby PKCSPT » Mon Sep 02, 2013 2:58 am

AAA and AAA batteries in my lights is all I use when boondocking. My radio is an emergency type that has a crank or solar cells on top to charge the battery. Citronella candles for outdoor light more because I enjoy the smell than any bug repellant possibilities.
For a fan I wiggle my trailer around for a cross breeze and hope there is one.
141240 145569147706
PKCSPT
Silver Donating Member
 
Posts: 1507
Images: 60
Joined: Wed Mar 31, 2010 11:27 pm
Location: Minnesota
Top

Re: Camping without hookups: One Battery or Two?

Postby Shadow Catcher » Mon Sep 02, 2013 5:11 am

Since the last post we now have real world experience with our solar. Eight days on the north shore of Lake Superior in a shaded camp site (maybe one hour full sun). The panel is a 66 cell 185W high voltage feeding a Morningstar MPPT controller and into the 150AH Lifeline AGM. The refrigerator is the major power user.
65% depth of discharge at the end of eight days.
User avatar
Shadow Catcher
Donating Member
 
Posts: 5611
Images: 192
Joined: Sat Apr 11, 2009 8:26 pm
Location: Metamora, OH
Top

Re: Camping without hookups: One Battery or Two?

Postby Socal Tom » Mon Sep 02, 2013 12:22 pm

Another option for multiple batteries is to use a marine battery switch. You can select one, both or none, and switch between them. I have never had good luck with multiple batteries, especially if only seeing occasional use. If left on, one will drain the other and then you end up with a bad battery. With the switch, I just use one until it gets low, then switch to the other, then turn them oath on for charging. There are fancy automatic switches, but I never found them reliable.
Tom
Socal Tom
Donating Member
 
Posts: 962
Images: 9
Joined: Sun Jun 29, 2008 9:21 am
Location: San Diego Ca
Top

Re: Camping without hookups: One Battery or Two?

Postby halfdome, Danny » Mon Sep 02, 2013 1:14 pm

S. Heisley wrote:One more thing to consider (I didn't check to see if someone already mentioned this). When you have more than one battery, if one battery goes bad, it is always suggested that you replace both because having one battery weaker than the other can cause problems. Replacing two batteries could be more expensive and more hassle. For that reason, I think it is better to have one big battery rather than two smaller batteries wired in tandem.

On my first teardrop I had an experience of replacing one of my batteries because it began to sulfate.
I replaced it and eventually the other one sulfated too.
Reason being is that I had started out with only one battery and added another a year later.
If two batteries are for you, make sure the born on date isn't more than two months apart.
I have never had a problem since that experience since I always have the same born on date on each battery.
:D Danny
ImageImage
"Conditions are never just right. People who delay action until all factors are favorable do nothing". William Feather
Don't accept "It's Good Enough" build to the best of your abilities.
Image
Teardroppers Of Oregon & WashingtonImage
User avatar
halfdome, Danny
*Happy Camper
 
Posts: 5381
Images: 152
Joined: Sun Aug 14, 2005 11:02 pm
Location: Washington , Pew-al-up
Top

Re: Camping without hookups: One Battery or Two?

Postby hiker » Mon Nov 11, 2013 9:25 pm

As this will be our first trailer I have no idea how much electricity we would use. However we are thinking of bringing along our camera/laptop power, amateur (817ND) radio gear; cb in tov vehicle.

So thinking 2 batteries one just fore, other just aft of axle. Water storage over axle. Excepting our cast iron I think all our heaviest items are centered.
Build Journal: Expedition Trailer Mk I http://www.tnttt.com/viewtopic.php?f=50&t=57985
hiker
Teardrop Advisor
 
Posts: 65
Images: 41
Joined: Mon Nov 11, 2013 6:42 pm
Location: DC Metro
Top

Re: Camping without hookups: One Battery or Two?

Postby eggsalad » Tue Nov 12, 2013 12:03 am

halfdome, Danny wrote:
Jane uses a 110 volt curling iron on the inverter too.


Wait, what? Curling one's hair while camping? This must be a Twilight Zone episode.
eggsalad
Teardrop Master
 
Posts: 235
Joined: Wed Aug 21, 2013 3:39 pm
Location: Las Vegas, NV, USA
Top

Re: Camping without hookups: One Battery or Two?

Postby eggsalad » Tue Nov 12, 2013 12:04 am

2 @ 6v, 12Ah emergency exit light batteries wired in series.
eggsalad
Teardrop Master
 
Posts: 235
Joined: Wed Aug 21, 2013 3:39 pm
Location: Las Vegas, NV, USA
Top

Re: Camping without hookups: One Battery or Two?

Postby Ron Dickey » Thu Jan 02, 2014 12:39 pm

I have started a new build and plan on 2 batteries one to run the right side and outside the other to run the left hand side and inside. :thumbsup:
A couple of switches will be put in so they can run together in parallel or one can take over the what the other does if one fails.

I will also have an A/C plug so if we stay in a place that offers power we can plug it in the galley while charging our batteries. :twisted:

Hope to in the future have solar. 8)

Ron
121377.............134179.........134805
both side walls are up...cabinet needs stain.......ongoing 2.5 yr bld build as i find time..... Cross Bow in Build Journals....viewtopic.php?f=50&t=54108
User avatar
Ron Dickey
Silver Donating Member
 
Posts: 2930
Images: 701
Joined: Tue Apr 20, 2004 5:56 pm
Location: Central Coast, CA
Top

Re: Camping without hookups: One Battery or Two?

Postby Woodbutcher » Thu Jan 02, 2014 1:49 pm

I use only 1 battery. I charge while towing and have made 2 weeks without and hook ups for electric. No problems.
User avatar
Woodbutcher
Platinum Donating Member
 
Posts: 3865
Images: 45
Joined: Fri Mar 10, 2006 10:01 pm
Location: Chicago Suburbs
Top

Re: Camping without hookups: One Battery or Two?

Postby absolutsnwbrdr » Fri Jan 03, 2014 9:29 am

Just updated my vote. I have two batteries now, and will have two in my next build as well. None of my friends have teardrops, so mine ends up being "base camp". On some trips it seems that the stereo never turns off and people have to charge their cell phones, walkie-talkies, inflate rafts, air mattresses, bike tires, etc. We don't exactly use the power sparingly, so two batteries are a must. And also why a solar panel is a must. I have a 140W panel now, and the next build will likely have two 100W panels.

MOAR POWAAAAH!!! :lol:
User avatar
absolutsnwbrdr
Donating Member
 
Posts: 2560
Images: 365
Joined: Mon Jan 25, 2010 6:10 pm
Location: Hanover, PA
Top

PreviousNext

Return to User Polls

Who is online

Users browsing this forum: No registered users and 0 guests