• Greg F
    206
    Hi All, Hope all is well with you!

    I thought I would document the new power system on our 5th wheel as I am starting from scratch. This will be a somewhat extended process waiting for parts, avoiding the heat and not in any hurry due to the virus lockdown.

    I started by removing the storage partitions in the basement to check access for installing a Hughes EMS and GoPower transfer switch. I found some unused space and decided to do the battery, inverter, chargers install in the basement rather than the front compartment. I should be able to house all my gear for solar etc. and increase the cargo bay at the same time! The basement is ducted for heat and should be better conditions for our lithium battery bank. This will also leave the front compartment available for large bulky stuff like shade canopies, tables, dead bodies etc..


    Here is what it looks like from the factory.
    pttzdhjue5xacxcr.jpg

    With the walls removed. Blue tape is where walls were.

    37bnw5z81y3rbkx6.jpg

    Approximate location of new walls to be installed. I removed the stock converter/charger as it won't be needed and relocated the 120v outlet out of the way.

    5sea3ahi5ozmeihx.jpg

    The area under the stairs made a great spot to install the Battery bank. I did need to remove a stair support leg but a plywood header will make this stronger than stock.I am going to reconfigure these cells for a 24v battery bank this time. That will make this a 300ah battery @24v

    nhb297knmud6g945.jpg

    That's all for now. I have more parts coming and will update this thread as progress continues.
  • Ray
    604
    Cool, thanks for posting. It must be nice to be able to start from scratch with a clean pallet sort of speak. :) Those rigs have a nice tall storage area.
  • jalandry47
    6
    Very nice! I look forward to the updates. What rig is this going into?
  • Greg F
    206
    Thank you!

    It is a Grand Design 2930RL
  • RVsolar
    289
    very nice CABL cells looks good!
  • Rush and Lola
    170
    That's a lot of AA batteries. Have fun and enjoy the solar.
  • Kevin Klein
    5
    Greg F love the pictures and the layout. I too have a 2930rl and just started full timing just 4 days ago. I am excited to see how much extra room there is in the belly storage. I will be installing solar as well as $$$$ permits. Q. Are you also on the GD 2930RL FB page? Would love to follow your progress.
  • Greg F
    206
    I am on the FB page. I may do a recap there at some point but will probably give the blow by blow info here.

    Congrats on full timing! Hopefully you aren't having a hard time finding places to stay right now.
  • Greg F
    206
    Thanks. These are (24) 3.2v/100ah cells. I had them arranged in a 12v/600ah bank in our last camper for about 3 years. I just did a load test on them and they are all still good for over rated capacity and the cell voltages were tight all the way down to the bottom. Pretty happy with the bang for the buck on these as well as their size and weight. They are even cheaper now. I contemplated building a larger battery but I think with increased solar input I will be fine. If not I can add a same size parallel bank latter. I am also going to try adding a BMS system to the bank. I had resisted in the past but I found a 24v/200ah unit that was affordable so what the hay.

    I am going to try a 24v 3p/8s battery arrangement this time with a 24v inverter. This should allow a little better wire efficiency and smaller more manageable cabling as well as improved dc-ac efficiency for the inverter. :nerd:
  • Kevin Klein
    5
    We are currently up east of Flagstaff Az in Walnut Canyon. Started our journey in Phx. Leaving tomorrow for a 2 week stay to get a fuel/tool box installed for better distance. Then hoping to make our way to SD for the summer. Will keep an eye on your posts. Thanks and safe travels to you.
  • Greg F
    206
    Might see you there. We are tentatively planning a trip to South Dakota this summer to look at properties in the Custer area. :)

    Please start a thread on the fuel tank and tool box. I am considering Titan under bed replacement as well as an in bed transfer tank with built in toolbox. I would be interested to see what you do!
  • Kevin Klein
    5
    gonna make it our domicile.
  • Greg F
    206
    I did the framing for the walls this morning. Blue tape was the old wall location. Excuse how rough it looks. These wall panels are just tacked in and will be covered with trunk liner carpet and mated to adjoining panels properly. It should look fairly stock when I am done. It looks like we picked up almost 6 square feet of additional floor space as well a nice wall to hang the solar components.

    The toilet drain pipe will limit how high we can stack in this corner but still some nice space underneath.



    gpmv2i7woodrgv8x.jpg
  • RVsolar
    289
    nice should have lots of room for gear.
  • Jetlag
    14
    I am going to reconfigure these cells for a 24v battery bank this time. That will make this a 300ah battery 24vGreg F
    Very nice setup. Wish i had that much room.

    We are tentatively planning a trip to South Dakota this summer to look at properties in the Custer area.Greg F
    We booked a spot at Crooked Creek Resort near Hill City but don't think we will be crossing the border in Aug.
  • Greg F
    206
    I found a tray that is almost the exact dimensions of out battery bank and installed it today. This will make maintenance much nicer. Still need to work on strapping things down and mounting the BMS unit but making some progress..

    2u0e7mskoavbw823.jpg
    kf4hahty14govd1d.jpg
  • Ray
    604
    Good job looking very slick! :starstruck:
  • Greg F
    206
    Most of the system below the roof is roughed in. I haven't wired up the inverter yet, waiting on a few more cables and lugs for the 24v > 12v converter as well.

    The solar panels I ordered were MIA, apparently destroyed in shipping. :gasp: Fortunately Amazon is crediting our account. I am thinking about trying these different panels. Has anyone had any experience with them? They are reasonably narrow so better distance from shading by air conditioner. They are also 24v which will help with cable efficiency. It appears they have 5 busbars which should make them better in shaded conditions.

    Newpowa 200 watt panel


    Here are a couple pictures of the almost complete basement. The battery compartment still needs to be trimmed out and the BMS/cables installed.

    wu59vamgemnch9d6.jpeg
    zebbisvfb2uefsxt.jpeg
  • Greg F
    206
    While waiting for the new solar panels I built a combiner box. I wanted something that could house circuit breakers as well as act as a combiner. These 4 strings will be over 100volts each so circuit protection seemed like a good idea.

    I saw and almost bought a product made by eco worthy but after watching a couple YouTube reviews and some reviews on amazon I decided to build one myself using an IP65 rated box. There is also a main breaker to protect the combined output cables located in the basement.

    Here is what I came up with. Nothing too glamorous but it should work well. I like that's is large and easy to work inside of it. Also room for adding on down the road or reconfiguring panel wiring.

    The entry point for the solar cables will be under a solar panel so the solar cables will pass through this box and on to an entry gland into the camper a short distance away.

    If anyone wants a parts list just let me know.

    khajstpvhilqqfs9.jpeg
  • Logan X
    96
    Thanks for keeping us updated Greg, I like seeing what you are doing. It looks good.
  • Greg F
    206
    Glad you are enjoying it!
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