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Old 06-02-2016, 07:53 AM   #11
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Originally Posted by cadillackid View Post
is it acceptable to mount a battery Inside the bus?

I would Like to install an 8D sized Battery isolated from my starting bank (except to charge).. but have no provisions under the bus or in the existing battery Box..

so I want to install it in one of the cabinets im building inside the bus.. just wondering if there are safety considerations with installing a standard battery inside the cab?

(obviously, mounting it down well, fusing / circuit breakering all connections from it etc are understood).

-Christopher
You'll need to vent the heck out of it.
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Old 06-02-2016, 08:16 AM   #12
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just wondering if there are safety considerations with installing a standard battery inside the cab
As long as you completely seal it off from the living compartment and adequately vent to the outside you should be ok. The compartment should not have anything that could produce a spark. Batteries off gas while being charged and normally it isn't a problem, but if overcharged will produce quite a bit of gas that can be explosive (hydrogen) also on a normal charge with a bad cell. Besides a charging battery stinks.

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Old 06-02-2016, 10:30 AM   #13
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My house batteries are all going indoors, but they will be in a vented, sealed compartment and are the non-gassing, fully sealed AGM type.
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Old 06-02-2016, 10:51 AM   #14
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My house batteries are all going indoors, but they will be in a vented, sealed compartment and are the non-gassing, fully sealed AGM type.
I'll be going the AGM route as well with my batteries. No maintenance and no gas to worry about.
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Old 06-02-2016, 10:57 AM   #15
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Another nice thing about having them indoors is that they remain at a more appropriate and stable temperature. Big swings can pull their available power down quickly.

Still trying to find a place to bring my start batt indoors as well.
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Old 06-02-2016, 10:58 AM   #16
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My two 6V golf cart batteries are inside one of my closets in a plywood box. I coated the inside of the box with fiberglass resin to resist the acid fumes and used closed-cell foam weatherstrip to seal the lid. Got a through-the-body vent from Dyers RV and vented the box through the top and out the side of the bus. And, yes, that's a part of a sink P trap coming out the top of the box.

You definitely want your box well sealed so the acid fumes don't eat your electronics. It's also nice to have the box easy to access so you can top off the cells easily.

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Old 06-02-2016, 04:40 PM   #17
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Google "hydrocaps" for batteries.

These gadgets recombine much of the hydrogen and oxygen liberated during charge back into water and put back into the cell. They make for much longer watering intervals and also do a darned decent job of keeping electolyte fumes out of the air.

You still need to vent your battery box, but curing the problem at the source like this is cheap and effective insurance.
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Old 06-02-2016, 06:36 PM   #18
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so really if I want to put batteries indoors I just need to get AGM and im good to go? trying not to have to drill massive holes in the bus that I then have to seal up inside somehow for water, air, heat, etc.. or if these arent it.. are there batteries I can use indoors without drilling nasty holes in the side of the bus?

-Christopher
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Old 06-02-2016, 09:17 PM   #19
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Batteries give off acid fumes? " I was not aware of that Dude. "
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Old 06-02-2016, 09:32 PM   #20
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Batteries give off acid fumes? " I was not aware of that Dude. "
Yup. Hydrogen sulfide gas.

AGM batteries don't vent unless overcharged, but it's still best to provide a good vented enclosure.
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