RV Install

Loquist

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Joined
Jul 20, 2018
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27
Hey all,

I am building a 4x4s40p (I hope that is correct. I know Korishan will give me a failing grade if I messed that up. :D) battery in my RV. I am currently designing my busbars andconnections between each parallel "cell". Before I finalize my design I need some input. My family lives in our RV full time (By choice. We travel the country extensively.) and we love to boondock (stay off grid without external hookups). That means our "house" is subject to continual earthquake-type movement. If anyone is familiar with the standard layout of RV's that have the master bedroom up front, you'll know that there is a passthrough storage right under the bed. That is where I have my existingbattery packs, inverter, and charge controller. It is the area of the RV that generally stays a stable temperature and has decent access for install and maintenance. It looks like this, and the install will be in the cubby area on the left side of the picture.

image_fumfsf.jpg


I'm not sure of the best way to install the packs to ensure they stay in place while driving down the road. I don't want to lay them on the floor because I want to make sure there is airflow around them for cooling.(I'll be using a Batrium system. I cried as I ordered it, but the pain only occurs once.)Also, when you live a life on the road space is at a premium. So, I would like to hang them on the walls, but I can't think of any really good ways to make them stay put.

What do you all think? Din rails with some sort of connector holding them on? Plywood backing? Any ideas would be appreciated.
 
Loquist said:
I am building a 4x4s40p (I hope that is correct. I know Korishan will give me a failing grade if I messed that up. :D)

You passed with flying colors ;)
 
Hello
Excellent to see someone else that full times(we will be full time in Canada next spring)
I am currently working on a 48v system myself...
I would check out RVPowerwall on Youtube as he has built a 24v system in his ProMaster City conversion...I believe his setup is a 7s100p setup
Like I said I am building a 48v system(still in the gathering and planing stages) and will use a DCtoDC converter to go from the 48v to the 12v system in the RV..
 
Howdy Loquist,

For my van build I'm building the packs into a side mounted steel box. The packs will rest in an L track and then strap down on the other sides using perspex and wingnuts. A couple of fans will take care of airflow. I'm going with 7S120P built into squared packs to save space.

40P is pretty sturdy. Wrap with some Kapton tape to make sure the pack is rigid and then you can latch it down pretty much however you like.
 
Awesome. Thanks John. That gives me something to start with. Did you build the steel box or purchase one?
 
Loquist said:
Awesome. Thanks John. That gives me something to start with. Did you build the steel box or purchase one?
Picked it up from SuperCheap auto for about $30. It's just a cheap galvanised box, but pretty sturdy. Once I re-enforce it with MDF it'll carry weight to spare.

I'll post a pic on my build in the next day or two.
 
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