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Chris, is the the 4045 CVS Lithium board replacement? How happy are you with it? I’m about to buy around 300 to 400 plus AHs of Lithium and read this should work. I see the board is $184 on ETrailer.

Tosot A/C installed this winter just finished also. Looks similiar to Greer. Very similiar to Atmos. Caught amazon at weak moment Prime day (900.00) and just finished install. Pretty simple if you have a good back mine is not had most of my friends help get a/c on roof with painters scafolding. Has great reviews on dehumidifying. Not needed up here in mt but maybe able to retire someday and head south. Picture below of unit on top is not mounted(FYI) Just set on top. Hardest part was leveling a/c because of factory bump. Could not modify drain lines to get them to work without ton of modifications. Here is a few pics. I installed with 100.00 dollar tosot soft start. I was told really did not need, but decided to install for running on my lithium. Heater works great. (Slow warm Heat 850watts not warm enough to test a/c quite yet. Pulling 900 watts on high but still cold up here in Montana. Great job on Atmos.

Just so you all know, my brain is overflowing with all the great on and off comments. Love them all. I’ve been cutting and pasting notes, and should have created a separate folder for just Batteries and Solar and install. You are all giving me a college course in Oliver Trailer Life. Thanks

I’ll buy the 2nd round. It’s all good,.

You are welcome any winter to visit us in Tampa

No, you will still get the full 45 amps of charging, it's just that it's split between two batteries when wired parallel, sending 22.5 amps to each.

Another reason we love this forum. Even the Master learns here.

So your 460AH Lithium batteries will run the AC for a few hours? We have the 13,500 Dometic Penguins

Oh, did not know about 2 Lithium batteries, means 45 amps with the new 4045CVS board will only charge 22.5 amps. Will have to camp in cool months/up North.

Looking at adding about 600AH from your earlier comments, Have 380 portable solar. Will add the Lithium and the 4045CVS board and see how that works.

Well said. Thanks

With the 45 amp upgrade, maybe 3 times longer. Spend more now, to save money later??? Or jump in all in. Decisions, decisions.

Craig, I often go the path less traveled, and end up in the briars and brambles. For $184 I can add the 45 watt charger board. I also am looking at the Xantrex 3000 watt to get the higher amp output. May just go with the 45 watt board and see how it works with my new Lithium batteries.

Good to know. Will check on this.

As always, good info. thanks

@Teaney Hull 292 there are 3 ongoing post on the forum right now about lithium up grades and I must admit I have gotten confused on what was said in each one. What I haven’t seen in your post is mention of disconnecting the charge wire for you 7 pin connection. Just want to make sure you don’t miss that requirement when going to lithium. It was discussed recently @tallmandan thread below, https://olivertraveltrailers.com/forums/topic/10748-epoc-lithium-keep-it-simple-upgrade-advice/

Oh my goodness! That was exactly what I was doing! I can’t believe it didn’t dawn on me to put the nut on the back side of the Furrion cover! I spent the next hour in a panic, mumbling bad words occasionally, searching Amazon for a panel mount with longer screw threads! (I found one eventually.) Geez Louise.

I installed the VE.bus (required addition to the Victron Multiplus providing Bluetooth when going without screen displays), connected by Ethernet cable, in the same basement area on top of the wheel well. I put it there since it measures temp and I wanted it near the top of the same area where our inverter/charger is installed. The picture shows the "Detailed" tab of the app. You can see that today mine reads 69F and my Ruuvi sensor in the back trunk area shows 60F, which is about our outside temp today. The screen states Battery Temp because they assume you install it in the battery bay. So, the Victron is adding up to +9F on a cool day (hardly inverting and not charging at all since shore power is disconnected). Also, the cooling fan is off. BTW, these Beech Lane fans need resetting whenever power is disconnected. Above I mentioned the VE.bus is required. This is only true if you are like me and do not want the other Victron toys and displays, just app connection. I also mentioned USB or USB-C which is wrong for this device. The VE.bus is connected by Ethernet only to provide Bluetooth access to the Multiplus. This VE.bus also allows you to turn the Multiplus ON/OFF, charger ON only, or inverter ON only. There is an accessory you truly need for configuring the Multiplus. It's connected to the Mulitplus also by Ethernet port and at the other end of the device there's a short USB or USB-C cable to connect to your laptop. I have this sitting under the rear dinette seat but have not needed it since the original install. Though I believe I will need it again soon to up my batteries charge rate from 50A to 100A. https://www.amazon.com/gp/product/B0BNBVKSTH/

@tallmandan nice work, you will see a huge improvement in capacity with your upgrade.

Gary, sounds like you got a plan. I have the same PD charger and inverter only Xantrex 2000. Upgrading the inverter to inverter / charger combo can wait. What I typically do is turn off the circuit breaker for the charger and let my victron solar charge controller handle the charging since it is programmable. If solar is not keeping up for whatever reason I turn on the PD charger for top off. Will seek you out at the Rally to meet and check in on how your upgrade went.

I've been amplifying the hi-jack but I imagine @Teaney Hull 292 got what they needed in 2 pages and we're all here for more questions from any and all members! I would not worry about the 104F heat issue unless you plan to exterior mount your inverter in the sun! 🤣 Ours is under the streetside bed. It did get up to 104 during testing August afternoons where we get pretty hot, when sitting in the sun. I installed the dual Beech Lane fan, like the one I installed in the fridge cavity. It pulls air from the streetside basement, all the way from vents I added in the bath, closet, etc. With the fan on 104F drops to about 88F, with A/C on and the interior about 74F. Reason you want the Victron is you can run your A/C on generator with the Victron supplementing extra power from your batteries when the compressor is running and when the compressor shuts off your generator would be back to charging batteries. You likely know this already. Victron calls the feature Power-Assist. Re your other comments, she may learn to like boondocking. We love where we can go where there are paved roads and campgrounds. More opportunities west than east. Oct we plan to park the Oliver on the edge of the North Rim! If at a point where we truly want to run A/C on batteries, after we replace the Dometic with something efficient, a third 300AH could be in our future. Given you have the Honda, I do NOT suggest the suitcase addition. We rarely use ours and wish I had saved the $800+ for the suitcase, the Victron 30A MPPT, cabling, connectors, etc. I would certainly suggest adding 400W or as much as you can get on your rooftop. Our 2x 160W panels are now 10 years old. I wonder how efficient they could be. Given that and the flat mounting we usually only get +10 to 12A net charging rates (winter afternoon sun). The 400W Renogy suitcase will double those numbers, from a combination of newer panels and being angled towards the sun. I'm looking forward to reading about your upgrade when you get to it! 😂

It’s our first trip in our Oliver and a couple months behind schedule because my bride delayed her retirement a few extra months ………I have been chomping at the bit to go to the southwest and have been gleaning information from old threads on the forum I went to the rally last year as a non owner visitor to tour the open house Olivers and see the real thing . very welcoming group at Guntersville and very knowledgeable , I hate to miss it this year Steve Morris and others without hesitation gave me an Oliver tutorial that cinched it for me and then I started looking at the used market real hard and found a 2022 that the owners were negotiable Ready to get on the road after planning this for over 3 years

I will definitely be adding solar sometime next year. My son will be going off to college and my wife and I will be hitting the road for a VERY extended period. Want to be ready for boondocking, which I know we'll have to do along the way, whether she likes it or not! In the beginning stages of planning now and will stuff in as many amp hours worth of batteries, and as many watts of solar as possible, but still crunching numbers and comparing all the other parts and pieces. I really just wanted to go all Victron since I love their monitoring system but when comparing the invertor function of the MultiPlus 12/3000/120-50 to the Xantrex XC Pro 3000 I found a substantial difference in wattage ratings as the temps climb. At 104 degrees and above the Victron de-rates much more than the Xantrex and it only has 1760 watts available for inductive loads while the Xantrex has 2400. Gets even worse at 113 degress where it's 1628 vs 2220. I know we'll eventually end up in some pretty hot places where we'll need to run the AC for a while and I want to be sure I can run it under those conditions, so for now I'm stuck on what to do. Thankfully I have time to figure it out and make a decision. Sorry to hijack your post, @Teaney Hull 292! I'll buy the first round next time!

I get it. With home base of Houston or Tampa you guys have different needs. We will never come to visit you during the summer months!

I'm an engineer, certainly a numbers geek, and OMG! I never added this up before. 🤣 Yes, you are absolutely correct. The Epoch app displays total amps +/- and amps to each battery. This was taken on a recent winter day, snow on the solar panels and I plugged in after several days of this weather. You can see +48.4A net charge to the batteries, with individual batteries receiving 22.8A and 25.6A (see pic). I should set our Victron to 100A charging and next time I'm down to 20% SOC we can recover in under 5 hours.