Building a battery box - Fiberglass RV


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Old 03-10-2012, 10:31 AM   #1
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Building a battery box

After several years of hesitation, I pulled out the angle grinder today and cut the propane bottle rack off my tongue. I'm off to the hardware store for some diamond plate and the parts house for battery boxes and supplies.
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Old 03-10-2012, 11:03 AM   #2
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... cut the propane bottle rack off my tongue.
Hope your tongue heals nicely. My bad.

Looking forward to pictures of the build too!!
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Old 03-10-2012, 05:32 PM   #3
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In process: the new bracket/shelf is installed. Tomorrow I'll mount the battery boxes.
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Old 03-10-2012, 05:33 PM   #4
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Old 03-10-2012, 05:37 PM   #5
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Put your battery in a BOAT Battery box on top the diamond plate so what seeps out will not eat up your good work.
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Old 03-10-2012, 05:44 PM   #6
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Put your battery in a BOAT Battery box on top the diamond plate so what seeps out will not eat up your good work.
+1 Acid always finds its way under the battery.
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Old 03-11-2012, 01:41 PM   #7
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You mean like this? I still have bungee cords and wiring to finish but it's mostly done.
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Old 03-11-2012, 01:42 PM   #8
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And yes, the LiteHouse needs a bath.
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Old 03-11-2012, 01:49 PM   #9
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You mean like this? I still have bungee cords and wiring to finish but it's mostly done.
Looks good!
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Old 03-11-2012, 03:50 PM   #10
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Davie, An outstanding job.
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Old 03-14-2012, 05:40 PM   #11
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So, like every job on an old trailer, this one got a bit more complicated. As I redid the battery wiring, I found a few mysteries and a new problem emerged. As I was getting ready to connect the new battery cable to the converter, I found a small device on the side of the old battery box. It sits between the battery and the converter. It's difficult to see but I've decided that it's either a diode or a circuit breaker. I'll try to attach a photo.

The other mystery is a green wire that heads toward the old battery box from the connector for the running lights. I'm guessing that it is a ground, but the precious owner said she had modified the towing circuit so that it charges the house batteries as it tows. Figuring that out will involve some quality time with a meter.

The problem is with the converter. I pushed the gfci test button and it (the gfci) fell apart. It's an old Carson 15 amp converter and has a terrrible buzz. My next camping trip will be dry (From a power and water standpoint.) my next powered campsite is on Memorial weekend so I'm not In a hurry for a fix.

Here are some pix. The big thing to the right of the terminal strip is a big fuse that sits between the negative side of the battery and everything else.
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Old 03-14-2012, 06:12 PM   #12
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Nice work. I'm not a fan of wire nuts in a mobile environment, though some tape them to keep them tight.

Good idea on the ground fuse.
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Old 03-14-2012, 06:19 PM   #13
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I like the twin batteries...group 24 or 27?
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Old 03-14-2012, 06:32 PM   #14
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12 volt wiring/110 converters can be a can of worms.Looks like you understand 12 volt.My 82 Scamp is a mess for wiring.I know 12 volt wiring also,so I may have to rip it all out and start from scratch.At least then I'll know what's up if I have problems.
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