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  1. #1
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    Shopping List for Lithium Battery Upgrade and Inverter/Transfer Switch Install?

    I am wanting to upgrade to either two 100ah lithium batteries or one 200ah lithium battery plus a 2000 watt inverter with transfer switch at the end of this camping season. I have the inverter prep and the orange wire in my pass-through compartment. The battery choices will be determined if I have to remove them (weight) or not and where I have the battery. If I don't have to remove the battery during the winter I will put the one 200ah battery inside the compartment if I can get the current battery cables run into the compartment. If I have to remove the batteries during the winter I will go the two 100ah route and keep the batteries on the tongue. Due to space limitations I want a combo inverter and transfer switch. This will be mounted about 6' from where the orange wiring is.

    Any and all comments are welcome. I am hoping to catch some items on sale during the Black Friday sales. I do need to control how much every thing costs. I most likely will do the battery swap first unless I can get a good deal on the inverter/transfer switch.

    What exactly is the purpose of having a transfer switch? I do not have a generator with my trailer.
    Last edited by reubenray; 05-20-2024 at 12:59 PM.
    Raymond, Dee Dee and Sophie (Yorkie)
    2023 Chevrolet 2500HD LT 4X4
    2024 Grand Design Reflection 296RDST

  2. #2
    Rolling Along
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    2k inverter can consume a lot of electrons so I would keep the inverter and batteries as close as possible. Less voltage drop and your wallet will be happier. If it was me and the cable runs are short, I would just go with 4/0 cables. Sure, that's overkill, but if we are only talking about a couple feet, I got that kind of money to burn.

    If you are looking to build your own cables, the Chinese make a 'good enough' hydraulic crimper that should last as long as you will use it. As a professional mechanic, it's nice to have cheap/good tools for that you rarely use.

  3. #3
    Site Team Soundsailor's Avatar
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    Quote Originally Posted by reubenray View Post
    I am wanting to upgrade to either two 100ah lithium batteries or one 200ah lithium battery plus a 2000 watt inverter with transfer switch at the end of this camping season. I have the inverter prep and the orange wire in my pass-through compartment. The battery choices will be determined if I have to remove them (weight) or not and where I have the battery. If I don't have to remove the battery during the winter I will put the one 200ah battery inside the compartment if I can get the current battery cables run into the compartment. If I have to remove the batteries during the winter I will go the two 100ah route and keep the batteries on the tongue. Due to space limitations I want a combo inverter and transfer switch. This will be mounted about 6' from where the orange wiring is.

    Any and all comments are welcome. I am hoping to catch some items on sale during the Black Friday sales. I do need to control how much every thing costs. I most likely will do the battery swap first unless I can get a good deal on the inverter/transfer switch.

    What exactly is the purpose of having a transfer switch? I do not have a generator with my trailer.
    On my 260RD, the orange wire for the inverter prep was in my front compartment. @Butcher is correct, you want your inverter and batteries to be as close as possible. For me, that meant everything went in the front compartment (see my write up here). The transfer switch allows your system to go from inverter to shore power seamlessly. When the shore power comes on, the whole coach draws from there. As far as removing the batteries for winter, the first year I did that (but it got old in a hurry). Last year I switched off my battery bank so no power was going in or out and left the batteries in the coach. This spring I simply turned the battery bank back on. The batteries are fully charged now and ready to go.
    Stephen and Judy
    2022 Reflection 150 Series 260RD (Stella)
    2017 Chevy Silverado 2500 HD (Blue)
    Traded - 2018 Forest River Rockwood Minilite 2104S

  4. #4
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    Quote Originally Posted by Soundsailor View Post
    On my 260RD, the orange wire for the inverter prep was in my front compartment. @Butcher is correct, you want your inverter and batteries to be as close as possible. For me, that meant everything went in the front compartment (see my write up here). The transfer switch allows your system to go from inverter to shore power seamlessly. When the shore power comes on, the whole coach draws from there. As far as removing the batteries for winter, the first year I did that (but it got old in a hurry). Last year I switched off my battery bank so no power was going in or out and left the batteries in the coach. This spring I simply turned the battery bank back on. The batteries are fully charged now and ready to go.
    I have the trailer home and the orange wire will be about 3' to 4' from where I will mount the inverter. If I can get the existing battery cables on the tongue into the compartment the battery will be right beside the inverter. So right now I will need some wire to extend the orange cable wiring to the inverter, an inverter with transfer switch and a 200ah lithium battery. I can disconnect the battery cables during the winter.

    But I have a small heater that I used in my wetbay that I could plug into the outlet that is in the compartment. I also have a temperature sensor that would turn the heater on and off with the temperatures. Would this work? I have a 370 watt solar panel with full sun in the storage yard to keep the battery charged.
    Raymond, Dee Dee and Sophie (Yorkie)
    2023 Chevrolet 2500HD LT 4X4
    2024 Grand Design Reflection 296RDST

  5. #5
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    After watching numerous videos of how to install an inverter I will find someone to install it for me. It may be easy for someone with electrical knowledge, but that someone is not me. I do hope to buy the battery and inverter/transfer switch for the install.
    Raymond, Dee Dee and Sophie (Yorkie)
    2023 Chevrolet 2500HD LT 4X4
    2024 Grand Design Reflection 296RDST

  6. #6
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    My inverter does the transfer itself (internally) from shore power to inverter.. You might be better off to upgrade the inverter and not buy the transfer switch. Just saying.



    Quote Originally Posted by reubenray View Post
    After watching numerous videos of how to install an inverter I will find someone to install it for me. It may be easy for someone with electrical knowledge, but that someone is not me. I do hope to buy the battery and inverter/transfer switch for the install.
    Location - Wherever the road takes us...Full-timers
    2015 Momentum 380
    2019 Ram Dually

  7. #7
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    Quote Originally Posted by el Rojo View Post
    My inverter does the transfer itself (internally) from shore power to inverter.. You might be better off to upgrade the inverter and not buy the transfer switch. Just saying.
    What inverter do you have?
    Raymond, Dee Dee and Sophie (Yorkie)
    2023 Chevrolet 2500HD LT 4X4
    2024 Grand Design Reflection 296RDST

  8. #8
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    While reading the instructions on installing a PD 2000w inverter there was several concerning comments.

    One was that the location of the inverter had to have venting. I plan on having everything in my pass-through storage.

    Another one was not to have the inverter close to the battery. I was planning on having the battery right beside the inverter.

    The third comment was the built in transfer switch was 30amp. What does this mean? I always plug into 50amp power and my solar controller is 50amp.
    Raymond, Dee Dee and Sophie (Yorkie)
    2023 Chevrolet 2500HD LT 4X4
    2024 Grand Design Reflection 296RDST

  9. #9
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    Quote Originally Posted by reubenray View Post
    What inverter do you have?
    Victron MultiPlus II 12V/3000 120 X 2
    Location - Wherever the road takes us...Full-timers
    2015 Momentum 380
    2019 Ram Dually

  10. #10
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    I am inquiring with some RV dealers to see if they do inverter/transfer switch installs. I would like to know what my options are if possible. I don't want to be over-powered, but I don't want to be under-powered either. I have a 370 watt solar panel and a Pro-Guide AGM battery right now. I would want to be able to watch TV, use the microwave and coffee pot (not at the same time). My 16cf refrigerator is solar powered as well as my lights. What would be the optimum size of lithium battery and inverter for my current setup. I mainly want this as a backup if I lose campground power. I would also use it if I stay overnight at a Walmart or rest area.
    Last edited by reubenray; 05-23-2024 at 09:28 AM.
    Raymond, Dee Dee and Sophie (Yorkie)
    2023 Chevrolet 2500HD LT 4X4
    2024 Grand Design Reflection 296RDST

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