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Old 08-16-2016, 05:55 PM   #1
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House Battery

picking up new to me 29r this week it has two house batteries under the step how much room is in there to add more or change to lithium ion batteries
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Old 08-16-2016, 06:02 PM   #2
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I have never heard of Lithium Ion for a RV??
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Old 08-16-2016, 07:55 PM   #3
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I have a 26HE and I'm adding 2 group 31 batteries this weekend or next. I hope I measured the compartment right, but it looks like I have the room.
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Old 08-16-2016, 08:12 PM   #4
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There are many, many good posts and resources considering all types of batteries on IRV2 - you can read for hours. One approach may be to get some accurate measurements of the space and then research the various types of batteries and their dimensions (keeping in mind that you need access to the top of 'unsealed' batteries). Lithium batteries are capable of being installed on their sides or ends if needed - a helpful benefit in tight spaces. Alternatively - lithium is best installed in a heated/cooled space for optimum function and life. Given lithium batteries construct and properties folks with battery compartment space constraints locate batteries in some other interior space. Best wishes ... let us know what you decide - we all learn ...
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Old 08-16-2016, 10:08 PM   #5
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As mentioned, lots of information here at

This is in the mods, fixes, and tips sticky above.

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Old 08-17-2016, 07:18 AM   #6
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Go with either 6v golf cart batteries or agm batteries. Personally stay away from lith-ion for now. Besides you may have to change your inverter charger to support them also.
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Old 08-17-2016, 10:23 AM   #7
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If the current batteries are over a year old it is normally recommended that you do not add new batteries into the bank but install all new.
Unless your previous coach had two batteries and you know how that fits your usage I would wait before adding/replacing until you see haw the current setup works for you.
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