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05-22-2023, 09:46 AM
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#41
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Senior Member
Name: Jerrybob
Trailer: casita
Washington
Posts: 677
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I think you folks should loosen up a bit......do what you want....be happy....enjoy life.
You hear about the guy that was trying to install a calendar app on his laptop in his Casita......accidentally he installed a colander app.
It keeps draining his battery.
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05-22-2023, 10:07 AM
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#42
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Senior Member
Name: Jack
Trailer: Casita Liberty
Virginia
Posts: 650
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Quote:
Originally Posted by jwcolby123
The article you quote (which I posted here earlier) says LiFePO4 do not catch fire.
As for cheaper to stay with AGM... OK. I get that you like AGM. They are marginally cheaper than the low end of LiFEPo4 however only until you start looking at replacement costs. The charge / discharge cycles (life cycle) are radically different between the two battery types. I have had RVs since the 90s. I replaced my Lead Acid batteries many times. It is never fun, always costly, and usually required at an inconvenient time.
I truly don't care what you do, but as for me, it is LiFEPo4 from now on.
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Thank you for the discussion.
My question is to add a LIFEP04 battery. Can someone swap from an AGM without having to do anything extra?
Can someone with low skills do this?
__________________
Been with my sweetheart since 1969
2015 Chevy Colorado & 2019 Casita owner
If I won the award for laziness, I would send somebody to pick it up for me.
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05-22-2023, 10:43 AM
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#43
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Senior Member
Name: Perry
Trailer: 2016 Bigfoot 25RQ
Lanesboro, Minnesota, between Whalan and Fountain
Posts: 759
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Quote:
Originally Posted by jgilliam1955
Thank you for the discussion.
My question is to add a LIFEP04 battery. Can someone swap from an AGM without having to do anything extra?
Can someone with low skills do this?
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Do you have solar?
If so, Eazy Peazy.
Depending on your camper's charger you may need to change it out. If you have a Progressive Dynamics charger just buy PD's Charge Wizard and plug it in. Also Eazy Peazy.
Enjoy,
Perry
__________________
2016 Bigfoot 25RQ - 2019 Ford F-150, 3.5 V6 Ecoboost,
Previous Eggs -2018 Escape 5.0 TA, 2001 Scamp 16' Side Bath, 2007 Casita 17' Spirit basic, no bath, water or tanks, 2003 Bigfoot 25B25RQ, that we regreted selling
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05-22-2023, 12:46 PM
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#44
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Senior Member
Name: Jack
Trailer: Casita Liberty
Virginia
Posts: 650
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Quote:
Originally Posted by Perryb67
Do you have solar?
If so, Eazy Peazy.
Depending on your camper's charger you may need to change it out. If you have a Progressive Dynamics charger just buy PD's Charge Wizard and plug it in. Also Eazy Peazy.
Enjoy,
Perry
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Thanks
__________________
Been with my sweetheart since 1969
2015 Chevy Colorado & 2019 Casita owner
If I won the award for laziness, I would send somebody to pick it up for me.
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05-22-2023, 02:10 PM
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#45
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Senior Member
Name: John
Trailer: Scamp 1995 19'
North Carolina
Posts: 403
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Quote:
Originally Posted by Perryb67
I'm not going to get all anal and waste my time on articles that you'll just debate, you have a habit of going on and on as you've done here, but the point of thermal runaway is in your Walking Solar link. According to the article, thermal runaway happens at 120C, and that happens when a nearby fire starts the LiFePO4 runaway, so it's certainly not zero. 120C is not that hot.
Enjoy,
Perry
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You might bother reading the article.
3rd International Conference on Air Pollution and Environmental Engineering
IOP Conf. Series: Earth and Environmental Science631(2021) 012114
IOP Publishing
doi:10.1088/1755-1315/631/1/012114
2
more effective way, because thermal runaway of batteries will generate a large amount of heat, which
can cause significant changes in battery temperature. In this paper, the temperature changes of LiFePO4
batteries with 20, 60, and 200 Ah during thermal runaway under overcharge conditions are analyzed.
The work will contribute to the design of temperature detection and early warning of batteries.
2. Experiment
2.1. Battery Samples
Three kinds of LiFePO4/C batteries with 25Ah, 60Ah and 200Ah were taken as research objects, which
are shown in Figure 1. The rated voltage of all batteries is 3.2V.
Figure 1.Battery picture, (a) 25Ah, (b) 60Ah, (c) 200Ah
2.2. Experimantal Step
Firstly, batteries were charged to a fully charged state according to the recommended procedure of the
battery manufacturer, and left on hold for 12 h. Secondly, the thermocouples were tightly attached to
the middle position of the sides of batteries. Thirdly, batteries were overcharged at a rate of 1 C. The
highest charging voltage was set to 35 V. When the thermal runaway of batteries occurred, the charging
stopped. During the experiment, the battery surface temperature was recorded.
So yea, if you fully charge the battery, then apply 35 VOLTS to it to force an overcharge, then at 266 degrees F it will enter thermal runaway.
And that applies to you and ONLY you!
As Young Hermione said... "What an idiot!"
But hey, let's just throw the fear of thermal runaway into everyone's mind.
__________________
JWColby EAAT
Exalted Arbiter of Anal Tripe
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05-24-2023, 10:59 AM
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#46
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Member
Name: ash
Trailer: Casita
Arizona
Posts: 32
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Hey Amy,
I'm late to the party but hopefully my reply will help you visualize what we got going on. My GF has a 2010 Casita 17' and her battery was toast. She went to Costco and purchased the largest deep cycle AGM battery with the highest RC (reserve capacity) that would fit in the battery compartment. My costco only sells the Interstate batteries.
The thing weighs about 85lbs and I had to tweak the battery compartment a little bit in order to accommodate it. I did get rid of the battery disconnect switch and she insulated the battery compartment for colder nights and mornings. The battery terminals have wingnuts on top so it's easy enough to disconnect the POS or NEG terminals. However, that scenario is going to be few and are between for her.
We only boondock so having the largest capacity battery is critical to us. We chucked the microwave long time ago and use that precious space as a food pantry.
Last weekend she picked up a 100w solar panel at the Overland Expo West show in Flagstaff. After she picks up the battery charge controller and some 10awg wire for me from Amazon, I'll wire it up for her. This way, we can put the suitcase style solar panel on the ground facing the sun while we go ride our MTBs or go hiking.
Best of luck on your travels.
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05-24-2023, 12:35 PM
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#47
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Senior Member
Name: Perry
Trailer: 2016 Bigfoot 25RQ
Lanesboro, Minnesota, between Whalan and Fountain
Posts: 759
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Quote:
Originally Posted by alia176
I'm late to the party but hopefully my reply will help you visualize what we got going on. My GF has a 2010 Casita 17' and her battery was toast. She went to Costco and purchased the largest deep cycle AGM battery with the highest RC (reserve capacity) that would fit in the battery compartment. My costco only sells the Interstate batteries.
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Series 27, 31 or larger? I was able to squeak a series 31 into our Casita.
Enjoy,
Perry
__________________
2016 Bigfoot 25RQ - 2019 Ford F-150, 3.5 V6 Ecoboost,
Previous Eggs -2018 Escape 5.0 TA, 2001 Scamp 16' Side Bath, 2007 Casita 17' Spirit basic, no bath, water or tanks, 2003 Bigfoot 25B25RQ, that we regreted selling
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05-25-2023, 08:58 AM
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#48
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Member
Name: ash
Trailer: Casita
Arizona
Posts: 32
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It was similar to a 31 but had a group# that was different.
I found it disappointing that Casita used THHN residential/commercial building wires to connect to a 12vdc battery. [emoji849]
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