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Old 12-02-2014, 07:50 AM   #1
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Adding a second battery

Has anyone added a second 12v battery to their 21' Escape? I'm thinking of getting another group 29 battery and vent the case into the original one under the dinette. Any thoughts or suggestions? thanks...Do I have to get a group 29 or go with a group 27 ? I already have solar.
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Old 12-02-2014, 08:36 AM   #2
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To keep it simpler, why not use a battery box designed for two batteries? That is what is in my trailer. I think it would keep maintenance simpler, and I doubt they are very expensive.

I can't see problem at all with using a Group 27 and 29 in parallel. I would be inclined to go for the Group 29 though, for the bit better power reserve.
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Old 12-02-2014, 08:39 AM   #3
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Jim,
Are your batteries vented to the outside, my one is and finding a double battery box with one vent is almost impossible, that is why I was going to piggyback the new into the existing one.
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Old 12-02-2014, 10:03 AM   #4
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Jim,
I'm wondering it different capacity batteries in parallel might present a problem for your solar charge controller as one would get to full charge before the other?
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Old 12-02-2014, 10:12 AM   #5
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Jim,
Are your batteries vented to the outside, my one is and finding a double battery box with one vent is almost impossible, that is why I was going to piggyback the new into the existing one.
Yes it is. No idea where Reace sources them though.
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Old 12-02-2014, 10:15 AM   #6
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Jim,
I'm wondering it different capacity batteries in parallel might present a problem for your solar charge controller as one would get to full charge before the other?
I am no battery expert by any means, but I don't see this as an issue, as the two batteries would just take whatever charge is available, should they need it. The voltage of both batteries would equalize.
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Old 12-02-2014, 10:41 AM   #7
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I am no battery expert by any means, but I don't see this as an issue, as the two batteries would just take whatever charge is available, should they need it. The voltage of both batteries would equalize.
I too am far from a battery expert! I was just wondering if the controller would stay on the higher voltage bulk charge cycle until the large battery was full and potentially overcharge/overheat the lower capacity one?
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Old 12-02-2014, 11:00 AM   #8
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Hi: Jim Bennett... I'm no battery ex spurt either. As a matter of fact I told my Dr. "It's up to my wife to charge my batteries". I don't have as much of a "Solar Dome" as you!!!
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Old 12-02-2014, 11:09 AM   #9
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I can suck up good solar energy with me big bald heed.
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Old 12-02-2014, 11:09 AM   #10
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Hi: Jim Bennett... I'm no battery ex spurt either. As a matter of fact I told my Dr. "It's up to my wife to charge my batteries". I don't have as much of a "Solar Dome" as you!!!

Wow - that's how you charge camera batteries?
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