Good Sam Club Open Roads Forum: What's your battery setup on your travel trailer?
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 > What's your battery setup on your travel trailer?

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OregonMan

Oregon

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Posted: 08/23/20 04:46pm Link  |  Quote  |  Print  |  Notify Moderator

Hey guys, I'm wondering what your battery setup is on your travel trailer. I have a 2018 Wolf Pup 16BHS travel trailer and am still using the original battery which I believe is a 12 volt deep cycle. However I've never been impressed with the battery... on a full charge it lasts maybe a day with moderate use. Do any of you have a multi-battery setup where you have 2 or 3 batteries for longer use? Are there bigger batteries? Could you install a Tesla power wall on your trailer? [emoticon]

Basically I'm looking for solutions to boondock for longer. I've got solar and a power generator but a better battery setup would be great. Thanks for any tips!

Lwiddis

Camping near Pearsonville, CA

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Posted: 08/23/20 05:07pm Link  |  Quote  |  Print  |  Notify Moderator

I use two Trojan T125s at 240 total amp hours. My desired energy use survey determined I needed about 90 AHs per day, so I hardly ever dip below 40% DOD. The batteries are fully recharged almost every day by my solar system.

Since deep cycle batteries should be fully recharged daily for longest life, I don’t understand your “longer use” comment. Few 12 volt batteries are deep cycle. Trojan makes a couple. What make is your battery? What is it’s AH capacity? Does your solar watts equal your total battery amp hours? Why isn’t your solar fully recharging your battery daily?


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watts solar-parallel & MPPT, Trojan T-125s. TALL pole for flags. Prefer USFS, COE, BLM, NPS, TVA, USF&WS, state & county camps. Bicyclist! 14 year Army vet - 11B40 then 11A - (MOS 1542 & 1560)


Mike134

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Posted: 08/23/20 05:15pm Link  |  Quote  |  Print  |  Notify Moderator

If I was boon docking and wanted a low priced setup use 6V golf cart batteries.


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Lwiddis

Camping near Pearsonville, CA

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Posted: 08/23/20 05:18pm Link  |  Quote  |  Print  |  Notify Moderator

Where would one buy low priced but quality 6 volt batteries that don’t need full recharging daily for longest life?

ktmrfs

Portland, Oregon

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Posted: 08/23/20 05:24pm Link  |  Quote  |  Print  |  Notify Moderator

need to know a little more about what you want to power.

6V golf carts are good for low-medium draw applications, less than 30A or so max. Above that voltage drop from internal resistance comes into play and can limit use with large inverter draws. A solution for that is 4 GC to reduce draw/pair if you have room. Or if you constantly want high current draw, good 12V deep discharge are a better choice.

And how often and how many days do you want to boondock. If it's only a few times/year and a few days at a time, a couple of decent true Deep discharge 12V may be the best cost solution.

For my situation I have 4 GC batteries about 500AH. Of which about 350AH is useable. Good GC can be drawn down to 25% SOC (75% DOD) and still give hundreds of cycle of life.

And the GC are taller than a regular 12V so do you have room for them?

And finally, the weakest link in most trailers isn't the battery, it's the WFCO charger which almost never will go to bulk charging mode so (1) batteries never get fully charged and (2) charging current limits to around 10A which means you can run the generator all day and not get the batteries charged. Solution is a Iota or Progressive dynamics drop in replacement,

I have solar, yes it really helps when the sun shines and you can have either the trailer or the portable panels in the sun.


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ssthrd

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Posted: 08/23/20 05:34pm Link  |  Quote  |  Print  |  Notify Moderator

I have 2 x 6 volt golf cart batteries (250 Ah) which can be supplemented with 260 watts of solar power and/or a 2000 watt inverter generator when needed.

Works well for me when dry camping.


2013 Wilderness 2750RL
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GordonThree

Northern Michigan

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Posted: 08/23/20 05:35pm Link  |  Quote  |  Print  |  Notify Moderator

My battery setup is four group 31 AGM batteries. I retrofitted a dinette bench into a battery and inverter bay.

When they were new six years ago I could go for days and days. Now they're about spent, I can go for a day.


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ADK Camper

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Posted: 08/23/20 07:22pm Link  |  Quote  |  Print  |  Notify Moderator

Ktmrfs said: And finally, the weakest link in most trailers isn't the battery, it's the WFCO charger which almost never will go to bulk charging mode so (1) batteries never get fully charged and (2) charging current limits to around 10A which means you can run the generator all day and not get the batteries charged. Solution is a Iota or Progressive dynamics converter.


I have found this to be true in my camper. I use an inexpensive manual battery charger to recharge my battery. Works faster than the WFCO OEM charger. But the reason for your battery discharging so quickly may be because of parasitic battery loads. If you have a Dometic fridge it may be that the door heater to control door condensation is always on. Some models have a switch to turn it off. But some models such as mine lack a switch. If yours is like mine you can install your own switch by cutting the heavier red wire inside the fridge interior light and installing a switch there. I did this and it extended the battery life by days.

Reisender

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Posted: 08/23/20 07:59pm Link  |  Quote  |  Print  |  Notify Moderator

OregonMan wrote:

Hey guys, I'm wondering what your battery setup is on your travel trailer. I have a 2018 Wolf Pup 16BHS travel trailer and am still using the original battery which I believe is a 12 volt deep cycle. However I've never been impressed with the battery... on a full charge it lasts maybe a day with moderate use. Do any of you have a multi-battery setup where you have 2 or 3 batteries for longer use? Are there bigger batteries? Could you install a Tesla power wall on your trailer? [emoticon]

Basically I'm looking for solutions to boondock for longer. I've got solar and a power generator but a better battery setup would be great. Thanks for any tips!


A powerwall will cost you about 7000 and provide around 5.5 kWh of power. It will have a built in inverter/charger. Actually good bang for the buck. Some large class A integrators are now using them. But for a trailer it’s probably overkill, and space consuming.

Jmho.

* This post was edited 08/23/20 08:11pm by Reisender *

azrving

Oatman

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Posted: 08/23/20 09:19pm Link  |  Quote  |  Print  |  Notify Moderator

This is on a FW but its the same with a TT or FW since the main issue is where to put the batteries. 6 GC2 from sams. 1000 watts of tilting solar and a Honda 3000. I also installed an Progressive 50 amp converter. I have also used an “Quick charger” brand 50 AMP. At times ive used an 30 amp power supply from Meanwell.

The FW originally had three GP24 batteries in a compartment at the right rear corner. I cut the original tray out and made it deeper. The GC2 is too tall to fit through the door so i put four of them in the tray and jack it up into the cavity and bolt it in The other two GC2 are in a rack under the FW about in the center and behind the rear axle.

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