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Old 08-31-2015, 01:44 PM   #11
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Are you saying you have done all this and giving as a tip to others? Or are you saying you want to do all this and wondering how it would work?

If you are asking how to wire 4 then you would need to do a Series/Parallel combo wire. Meaning you need to wire 2 sets (banks) in series and then wire those sets (banks) in parallel. This will double the voltage (to 12v) and the capacity.

Just not quite sure what you are asking/saying.
IF I am reading right he already installed the batteries.

I think he wants to run his household type refrigerator and his hot water heater off of an inverter while traveling. He also wants to know if the truck will keep the batteries charged.

I have a question, why are you running the HW? It will heat up in 15 minutes when you get on shorepower.

Jim
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Old 08-31-2015, 01:56 PM   #12
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I assume you mean FOUR (not for) 6v Interstate batteries. Why 6 V batteries? A 6V Interstate has 232 CCA, two in series (12V) is 464. A Group 27 Interstate 12V battery is 600 CCA and will carry a continuous 15 Amp load for 5.5 hours. Two in parallel will be close to 11 hours. No such data for the 6V. Again, assuming Four batteries - where in the world are you putting them? My Cardinal battery bay is pretty full with two Group 27 batteries.

What is the capacity of the inverter? This should be in the area of 1500 - 2000W just to handle the refrigerator. Nothing else (water heater, etc.) should be plugged into the inverter.
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Old 08-31-2015, 02:19 PM   #13
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I too, am confused. I run my refrigerator on the batteries. I installed a second 12 volt battery in parallel. I use an invertor to get 120 volt to the refrigerator. Having a second battery is great.
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Old 08-31-2015, 02:21 PM   #14
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The capital key is also not working. I don't know why people have decided to not use proper grimmer and punctuation anymore. It really helps to make the written word understandable. I'm betting he has an iPhone.
And the "a" key must not be working on your device either.
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Old 08-31-2015, 02:23 PM   #15
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If you must run water heater during travel then I'd put it in gas mode.



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OP has a residential fridge so propane is not an option. For water heater it is an option so I would definitely stay on propane there unless shore power is an option.
I didn't say the fridge, I said water heater.

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Old 08-31-2015, 02:29 PM   #16
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I assume you mean FOUR (not for) 6v Interstate batteries. Why 6 V batteries? A 6V Interstate has 232 CCA, two in series (12V) is 464. A Group 27 Interstate 12V battery is 600 CCA and will carry a continuous 15 Amp load for 5.5 hours. Two in parallel will be close to 11 hours. No such data for the 6V. Again, assuming Four batteries - where in the world are you putting them? My Cardinal battery bay is pretty full with two Group 27 batteries.

What is the capacity of the inverter? This should be in the area of 1500 - 2000W just to handle the refrigerator. Nothing else (water heater, etc.) should be plugged into the inverter.
Wow that was confusing. A good six volt golf cart batt is from 210 amp to 240 amp unlike 12s where two doubles that, two sixes in series doubles voltage but still the 210 or 232 amps. The grp 27 batts are normally 90 to 105 amps and two double that. Big benefit is 6v is designed to be deep cycle discharged and 12v 's not so much.
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Old 08-31-2015, 02:29 PM   #17
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I didn't say the fridge, I said water heater.

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You did but I was responding to Tom 48 (as I put his quote in my post) not you. ???
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Old 08-31-2015, 02:31 PM   #18
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You did but I was responding to Tom 48 (as I put his quote in my post) not you. ???
Shoot, I thought you quoted me, I apologize.

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Old 08-31-2015, 02:32 PM   #19
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Battery Power What to do

OK. I think you mean that you have (4) 6 volt batteries and an inverter and wonder about both your refrigerator and your water heater while travelling. First, you need the inverter to keep your frig going while travelling and the batteries, combined with the alternator should do that nicely. Put your hot water heater on propane...or just turn it off. I doubt that your inverter will handle both the frig and hot water at the same time anyway, but electric hot water from an inverter is pretty out there. Put it on propane or keep it turned off until you hook up to 110V at the campground.
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Old 08-31-2015, 02:43 PM   #20
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I assume you mean FOUR (not for) 6v Interstate batteries. Why 6 V batteries? A 6V Interstate has 232 CCA, two in series (12V) is 464. A Group 27 Interstate 12V battery is 600 CCA and will carry a continuous 15 Amp load for 5.5 hours. Two in parallel will be close to 11 hours. No such data for the 6V. Again, assuming Four batteries - where in the world are you putting them? My Cardinal battery bay is pretty full with two Group 27 batteries.

What is the capacity of the inverter? This should be in the area of 1500 - 2000W just to handle the refrigerator. Nothing else (water heater, etc.) should be plugged into the inverter.
What about something like this?

MK Battery | 6 Volt 200 AH Deep Cycle AGM RV & Marine Battery

915 cranking amps, 200 AH. Not bad and are AGM so no spilling or gas from charging because they are sealed.

Jim
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