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Old 02-06-2016, 05:12 PM   #1
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Best battery charger for two 6 v. deep cycle batteries in series?

Hi everyone. I'm a newbie and still learning. Upon recommendations from friends, I upgraded my standard 12v. battery that came with my Whitehawk 25BHS to two deep cycle 6 v. Interstate batteries. The batteries say 232 Ah on them.

I'm looking for a battery charger to keep them charged up when I'm not using them as I don't use it too frequently. What is the best battery charger that I should get.

I just ordered this charger on Amazon - Robot Check

But I don't think it will work as it says up to 120 Ah and mine is 232 Ah. What do you all recommend for the best battery charger for two 6 v. deep cycle batteries?

Thanks in advance.
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Old 02-06-2016, 06:46 PM   #2
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If they are 6V the Ah on the battery will be at 6 volts. So at 12 volts its half that. So when charging two 232 Ah 6 volt batteries on a 12 volt charger your charging 232Ah total not 464Ah. Still it sounds like your charger is a little small. If the batteries are fully charged and the charged does not do the cleaning cycles I think you'll be fine. The cost of batteries is quite high, why not just search and find a charger that can charge two 6V batteries that has plate cleaning cycles.
I'm using Noco Genius.
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Old 02-06-2016, 06:56 PM   #3
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Get the g7200 model of that charger you bought.
But why not just leave them hooked up to your trailer and let it keep them charged?
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Old 02-06-2016, 11:29 PM   #4
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Quote:
Originally Posted by Imnaha.Mansion View Post
The cost of batteries is quite high, why not just search and find a charger that can charge two 6V batteries that has plate cleaning cycles.
I'm using Noco Genius.

Thanks for taking the time to respond. I guess that's why I posted. I'm asking people in my situation (or that might know of a good charger that is applicable) to comment what works for them.



Quote:
Originally Posted by klassic View Post
Get the g7200 model of that charger you bought.
But why not just leave them hooked up to your trailer and let it keep them charged?
OK, I'll check out the G7200. Thanks. My trailer is in storage a few months out of the year when I won't be using it and I was told that it's not good to just keep batteries like this uncharged. I don't have solar and my storage doesn't have electrical plug in so not sure what you mean, "hooked up to trailer and keep them charged"?
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Old 02-06-2016, 11:35 PM   #5
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I figured your trailer would be plugged in.
My 6v are in my garage right now during the winter and they have been at 12.6v for over a month.
I charged them with the g7200. Then take it off
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Old 02-06-2016, 11:48 PM   #6
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Thanks Klassic! I just ordered the G7200 that you mentioned. I see I can charge them in series. How often do you charge them? Just every 2 or 3 weeks or monthly? Forgive the silly questions but learning day by day.
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Old 02-07-2016, 12:20 AM   #7
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I haven't charged them since early December. I checked them last week, they were at 12.6v that's about 80% full.
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Old 02-08-2016, 01:03 PM   #8
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Ours is in storage since early November with a disconnect switch and we visited it last week. The battery monitor showed 96%.
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Old 02-08-2016, 01:42 PM   #9
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You don't want to get too big a charger.. you are not boosting...
This charger set at 15A should be ideal and you can use it for your other vehicles as well... Robot Check


don't get mislead about 6vs12 volt as they are tethered together to make 12 so look at it as a 12V system.
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Old 02-08-2016, 02:50 PM   #10
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Since I store my TT in a public facility, between trips I keep my two Interstate 6V Deep Cycle batteries at home and keep them charged with a "BatteryMINDer". I like the auto-Desulfator feature of this product.

BatteryMINDer 1500 | 12 Volt Maintenance Charger Desulfator

BatteryMINDer Charger/Maintainer/Desulfator System Model&#35; 1500 | Battery Maintainers| Northern Tool + Equipment

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Old 02-08-2016, 11:22 PM   #11
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Thanks again everyone for the suggestions. I ordered the Noco G7200 as suggested. I just got it today so will go get the batteries and charge them up and report back how it goes. Thanks again. Great forum and community here.
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Old 02-09-2016, 11:39 AM   #12
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Same battery setup in our 2014 White Hawk. No charger used when driving 100 miles or more the next day and fully charged. If dry camping use basic 2/10/15 amp charger from WallyWorld when running the Honda 2000 for a couple hours in am and again early evening. Don't need anything exotic to charge twin 6volts, just a decent 12v auto charger.
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