Bigfoot power needs?? - Page 2 - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-24-2008, 06:41 PM   #15
Senior Member
 
Pete Dumbleton's Avatar
 
Trailer: Scamp
Posts: 3,072
Send a message via Yahoo to Pete Dumbleton
Trojan Batteries

I believe the Trojan T-105 battery is the one most commonly used (and often found at warehouse places like Sam's). Its dimensions are 10 3/8" L x 7 1/8"W x 10 11/16" H. It's the height that usually messes up the installation, however the width is also slightly larger than Group 24/27 batts.

BCI Battery Chart

BTW, after some checking around, the big reason for the 6V batts is because they are better deep cycle batts than those found in Big Box and Auto Supply stores(designed from the ground up for a long life of charge-discharge). They would give no fundamental advantage over a 12V battery of like construction except in price because the 6Vs are available at discount.
__________________

__________________
Pete Dumbleton is offline   Reply With Quote
Old 02-24-2008, 08:26 PM   #16
Senior Member
 
Bigfoot Mike's Avatar
 
Name: Mike
Trailer: Bigfoot 25 ft
Posts: 7,317
I went a totally different way. I bought two 6 volt AGM Lifeline 220 Ah batteries and connected them in series to get 12 volts. Because they are AGM, they require NO maintenance and can be stored inside the trailer. That being the case, I have them aganst the front wall under the table. This location made it very easy to set up the wiring.
__________________

__________________
Bigfoot Mike is offline   Reply With Quote
Old 02-24-2008, 08:37 PM   #17
Senior Member
 
Rick B's Avatar
 
Trailer: No Trailer Yet
Posts: 153
Quote:
I went a totally different way. I bought two 6 volt AGM Lifeline 220 Ah batteries and connected them in series to get 12 volts. Because they are AGM, they require NO maintenance and can be stored inside the trailer.
Great batteries, Mike, but look like over $300 each?
__________________
Rick B is offline   Reply With Quote
Old 02-24-2008, 11:17 PM   #18
Senior Member
 
peterh's Avatar
 
Name: Peter
Trailer: 2005 19 ft Scamp 19 ft 5th Wheel
Oregon
Posts: 1,519
Registry
You can spend a lot on batteries, but I have to admit the AGM (absorbed glass mat) batteries are very nice to have. They're tough: you can run them dry without damaging them and they store and deliver power very efficiently, much better than regular lead/acid batteries. Both qualities are very nice to have in a solar power setup.

My battery is a single Optima "Yellow Top" AGM battery. It has a 50 amp hour capacity and stores energy at 95% efficiency or better (standard lead-acid batteries run 75-85% efficient), which means it stores all the juice my 50 watt solar panel can pump out with very minimal loss. The sun would have to shine at high noon for 12 hours before my 50w panel completely charged it up from zero, but since the sun doesn't actually hang out at high noon for that long, a more realistic view is my battery stores around three times as much juice as my 50 watt setup generates on a bright, sunny day.

So, from a solar power perspective, it isn't how much my battery stores that limits my electric capacity, it's how little solar electricity my panel pumps out on a dreary winter day that sets my electrical limits.

--Peter
__________________
peterh is offline   Reply With Quote
Old 02-24-2008, 11:37 PM   #19
Moderator
 
Gina D.'s Avatar
 
Name: Gina D.
Trailer: '77 Leocraft 17 & Former Burro owner and fan!
West Coast USA
Posts: 9,016
Registry
Quote:
So, from a solar power perspective, it isn't how much my battery stores that limits my electric capacity, it's how little solar electricity my panel pumps out on a dreary winter day that sets my electrical limits.
Precisely. This is a common misconception folks have about solar. It is not perfect, but to me the few minor trade offs are worth it.

I have a day or two on occasion where I have not replenished as much as I would like, and I have to conserve to make up for it. It's not really a big inconvenience to me. So.. I don't watch tv that nite.. whoopie. Thats what they make books for. Even in the most dismal of charging conditions, I have not been left in the dark at anytime.

Getting the heater situation dealt with is a high priority for me. I just got another briefcase panel off eBay and will add a few more as I see them at a good price.
__________________
Gina D. is offline   Reply With Quote
Old 02-24-2008, 11:53 PM   #20
Senior Member
 
Name: George
Trailer: Waiting for the Sprinter van and designing the converion modules.
Oregon
Posts: 629
Quote:
I went a totally different way. I bought two 6 volt AGM Lifeline 220 Ah batteries and connected them in series to get 12 volts. Because they are AGM, they require NO maintenance and can be stored inside the trailer. That being the case, I have them aganst the front wall under the table. This location made it very easy to set up the wiring.
Mike,

What charger/conveter do you use for your AGM batteries? Personally, I would have a batteries ventilation system for any lead acid batteries even AGM. AGM batteries can unlikely but possibly generate hydrogen if charging voltage is too high.

George.

__________________
GeorgeR is offline   Reply With Quote
Old 02-25-2008, 12:37 AM   #21
Senior Member
 
Bigfoot Mike's Avatar
 
Name: Mike
Trailer: Bigfoot 25 ft
Posts: 7,317
Quote:
Great batteries, Mike, but look like over $300 each?
The list price is $320 USD. I paid about $100 less for each. Shipping was UPS and cost $15. Over the life of the batteries, they end up costing less than lead acid.
__________________
Bigfoot Mike is offline   Reply With Quote
Old 02-25-2008, 12:38 AM   #22
Senior Member
 
Bigfoot Mike's Avatar
 
Name: Mike
Trailer: Bigfoot 25 ft
Posts: 7,317
Quote:
Mike,
What charger/conveter do you use for your AGM batteries? Personally, I would have a batteries ventilation system for any lead acid batteries even AGM. AGM batteries can unlikely but possibly generate hydrogen if charging voltage is too high.
George.
I have an [b]INTELI-POWER 9100 SERIES with a [b]Charge Wizard to charge my two [b]GPL-4CT RV

I contacted Lifeline about the Wizard. Here is what they said:
<blockquote><span style="font-family:Arial"><span style="font-size:10pt;line-height:100%">I just hung up the phone with the Progressive Dynamics service tech and he explained how the charger works. It works perfectly for our batteries. The charge wizard is a great feature for the charger. If you have any other questions please let me know.</span></span><span style="font-family:Arial"><span style="font-size:10pt;line-height:100%">Thank You</span></span><span style="font-family:Arial"><span style="font-size:10pt;line-height:100%">Justin Godber</span>
<span style="font-size:10pt;line-height:100%">Lifeline Batteries</span>
<span style="font-size:10pt;line-height:100%">955 N. Todd Avenue</span>
<span style="font-size:10pt;line-height:100%">Azusa, Ca. 91702</span>
<span style="font-size:10pt;line-height:100%">Tel - 626-969-6886 x 221</span>
<span style="font-size:10pt;line-height:100%">Tel - 800-527-3224 (Inside USA)</span>
<span style="font-size:10pt;line-height:100%">Fax - 626-969-8566</span>
<span style="font-size:10pt;line-height:100%">www.lifelinebatteries.com</span>
</span>
</blockquote>
__________________
Bigfoot Mike is offline   Reply With Quote
Old 02-25-2008, 06:44 AM   #23
Senior Member
 
Steve L.'s Avatar
 
Name: Steve
Trailer: 2003 Casita 16' SD
Michigan
Posts: 1,690
Registry
Quote:
So, from a solar power perspective, it isn't how much my battery stores that limits my electric capacity, it's how little solar electricity my panel pumps out on a dreary winter day that sets my electrical limits.

--Peter
I love gadgets and have always wanted solar but I almost always camp in the woods. From what I've read, getting the panel's rated solar output depends on pointing it at (perpendicular) and being completely in the sun. I'm disinclined to spend time chasing the sunny spots around my camp site. I'm just under 45 degrees north latitude which means the sun only gets to about 68 degrees above the horizon (mid summer's day). Plus, for my location (midwest) we're not exactly blessed with an overabundance of sunny summer days. (There are charts for this). Even fewer, percentage-wise, during the winter. Although with the leaves gone I suppose I'd have better access to the sun.

So far I haven't been able to justify solar. No doubt it would be better than nothing getting even something back into the battery but it hasn't yet crossed some personal, ill defined threshold yet.

I like this site for solar basics. It has seasonal expectations for hours of direct sunlight, intensity, etc.
__________________
Quando omni flunkus, moritati
Steve L. is offline   Reply With Quote
Old 02-25-2008, 09:09 AM   #24
Moderator
 
Gina D.'s Avatar
 
Name: Gina D.
Trailer: '77 Leocraft 17 & Former Burro owner and fan!
West Coast USA
Posts: 9,016
Registry
Steve, all of that is "Best practice", but in the great scheme of things, in a real set up out in the wilds, just tilting the thing at about 45 degrees and pointing it in the direction of the sun works just fine for charging an RV battery. No sweating and calculation are truly necessary.

Remember, a lot of folks plop these things on their roof and forget about them.. they don't move their rig all day to get better sun exposure for their panels.

I move mine when I think about it, but don't fret over it most times. It only takes a second, and I certainly don't have alarms going off telling me it's time to adjust the panel.
__________________
Gina D. is offline   Reply With Quote
Old 02-25-2008, 09:28 AM   #25
Senior Member
 
Rick B's Avatar
 
Trailer: No Trailer Yet
Posts: 153
Quote:
Mike,

Personally, I would have a batteries ventilation system for any lead acid batteries even AGM. AGM batteries can unlikely but possibly generate hydrogen if charging voltage is too high.

George.
+++++++++++++++++++

My 96 Bigfoot 17G had two 50 watt panels with 3 - 12 volt batteries. One was on the tongue while the other two were in a custom built wooden box, situated under the settee, right side, vented to the outdoors. Mike, I have a PD Intellipower, but I don't think it came with a charge wizard - I wonder if it was an add-on, or if Bigfoot did not mention that it included the Charge Wizard. I will need to check this out.
__________________
Rick B is offline   Reply With Quote
Old 02-25-2008, 11:13 AM   #26
Senior Member
 
Name: George
Trailer: Waiting for the Sprinter van and designing the converion modules.
Oregon
Posts: 629
Quote:
+++++++++++++++++++

My 96 Bigfoot 17G had two 50 watt panels with 3 - 12 volt batteries. One was on the tongue while the other two were in a custom built wooden box, situated under the settee, right side, vented to the outdoors. Mike, I have a PD Intellipower, but I don't think it came with a charge wizard - I wonder if it was an add-on, or if Bigfoot did not mention that it included the Charge Wizard. I will need to check this out.
I believe that the newer Intellipower converters have Charge Wizard built in.

http://www.bestconverter.com/9200-Series_c_84.html.

I decided to get Xantrex http://www.bestconverter.com/XADC-80A-ConverterCharger_p_115-244.html which should fit (according to very helpful folks from BestConverter) into PPS 7300 converter which comes with Bigfoot.

George.

__________________
GeorgeR is offline   Reply With Quote
Old 02-25-2008, 12:54 PM   #27
Senior Member
 
Steve L.'s Avatar
 
Name: Steve
Trailer: 2003 Casita 16' SD
Michigan
Posts: 1,690
Registry
Quote:
... No sweating and calculation are truly necessary....
What? Well, what's the point then??
__________________
Quando omni flunkus, moritati
Steve L. is offline   Reply With Quote
Old 02-25-2008, 02:22 PM   #28
Senior Member
 
Pete Dumbleton's Avatar
 
Trailer: Scamp
Posts: 3,072
Send a message via Yahoo to Pete Dumbleton
When it comes to solar panels, I am reminded that "Perfect is the enemy of Good".

Mike, I like your AGMs; typical AGMs have fewer amp-hours than the LA batteries of the same size but yours are right up there with the Trojan T105 golf cart batteries.

My reservation about AGM vs LA is that if anything happens to an AGM (stolen or whatever), one is out a lot of money for the replacement. Having them inside is good.
__________________

__________________
Pete Dumbleton is offline   Reply With Quote
Reply

Tags
bigfoot


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Power Box Liz&Kev Modifications, Alterations and Updates 2 07-02-2009 10:27 PM
Power supply Harvey Craft Problem Solving | Owners Helping Owners 5 04-10-2006 09:51 AM
Need Power Legacy Posts Electrical | Charging, Systems, Solar and Generators 39 07-28-2003 04:55 PM
outside power Legacy Posts Problem Solving | Owners Helping Owners 14 05-28-2003 12:33 PM
Power Outtages General Chat 0 12-31-1969 07:00 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:24 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.