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Old 04-04-2016, 06:54 PM   #1
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Extra Battery configuration

Wondering if anyone has rigged 2-4 deep cycle marine batteries in parallel on a smaller hybrid, I have a 17. I was thinking maybe in the compartment under the bench seat because its near the front? I have an extra battery was planning on swapping them out but I think that means restarting everything I swap?

Planning on a smaller solar configuration either a portable suitcase or roof mount,
just trying to get some ideas on configuration.

Thanks newbie here, I like the back country and suffered needlessly last year lol
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Old 04-04-2016, 07:08 PM   #2
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I can't speak to where to place batteries, but from a sizing perspective.....

A 200 watt solar panel , with 6 hours of solid sunlight can give you about 80amps of charge in a day.

a pair of 12 volt 80 amp hour batteries , 160 amph total, used 50% each day, ( good battery management says 50%, then recharge fully ) would potentially recharged each day.

My point is only that the size of a solar array should be considered in the sizing of the battery array.

Weather they are 12 volt, or 6 volt. 2, 3 or 4 batteries..... consider your recharging system in your decision.

My.02
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Old 04-04-2016, 07:57 PM   #3
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I have two battery setups: 1) 105 AH Group 31 battery and 2) a pair of Trojan T-105 batteries at 225 AH for my hybrid. Both setups are flooded wet cell types.

This is what I did to add a second battery.



If you were to install a battery under a bench seat, the battery should either be a sealed type such as AGM or properly vented if a flooded type.
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Old 04-05-2016, 07:13 AM   #4
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IF you put a battery under the bench seat you will have to have a "special box" for it that vents the battery gas to the outside of the RV. I have 6-6volt batteries on the tongue and had a welder fab up a bracket for them. Just don't weld the bracket to the A-frame as it will mess with the tempering of the metal.. bolt it down...
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Old 04-05-2016, 11:50 PM   #5
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Quote:
Originally Posted by Seann45 View Post
IF you put a battery under the bench seat you will have to have a "special box" for it that vents the battery gas to the outside of the RV. I have 6-6volt batteries on the tongue and had a welder fab up a bracket for them. Just don't weld the bracket to the A-frame as it will mess with the tempering of the metal.. bolt it down...
Seann45, Do you have a picture of your setup, I can't picture 6 batteries on a tongue, but love the idea of it. Hopefully picture will help OP, others, and myself.
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Old 04-06-2016, 06:20 AM   #6
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Quote:
Originally Posted by sebring96hbg View Post
I have two battery setups: 1) 105 AH Group 31 battery and 2) a pair of Trojan T-105 batteries at 225 AH for my hybrid. Both setups are flooded wet cell types.
May I ask how you have them hooked up and how you charge the 2 different Ah battery groups?

Don
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Old 04-06-2016, 06:20 AM   #7
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Seann45, Do you have a picture of your setup, I can't picture 6 batteries on a tongue, but love the idea of it. Hopefully picture will help OP, others, and myself.
There are pictures in the MOD section.. you will have to go back a few years on it...
https://www.jaycoowners.com/forums/f3...stem-5305.html
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Old 04-06-2016, 07:04 AM   #8
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Originally Posted by sebring96hbg View Post
I have two battery setups: 1) 105 AH Group 31 battery and 2) a pair of Trojan T-105 batteries at 225 AH for my hybrid. Both setups are flooded wet cell types.

This is what I did to add a second battery.
.
I have the same setup.
I use a BlueSea battery selector and leave the 12v smaller ah battery charged as a back up if I drain the Trojans.
Which ever bank is selected that's the one that charges. Then switch over to charge the other bank.
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Old 04-06-2016, 09:17 AM   #9
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Thanks that looks outstanding, so both batteries are in that box? Love the box did you fabricate it yourself? Never seen one like that before.
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Old 04-06-2016, 09:21 AM   #10
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Sebring96 do you recharge with solar? and where can I find that awesome battery box?
I bought a cheesy one from Fleet Farm for $8 and I wanted to fabricate one myself but don't have any material instock
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