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    Battery isolator functionality question

    I have a question about battery isolators I haven’t been able to find an answer on. I understand it’s purpose and function under normal use/wiring, but I’m wondering if there is any functional difference to my simple wiring schematics below. from what I can see, batteries would still be...
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    BigBattery Rhino 48v alternatives?

    Hey everyone, I’ve been looking into a battery for a van build, I’m looking for a single contained battery bank such as the BigBattery Rhino. At first glance the Rhino is exactly what I’m looking for, but I want to know what my other options are but really haven’t found much. Anyone know of...
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    Multiplus-II AC wires pull out easily!?

    I’ve got a big issue, I was so excited to finally do the final AC connections only to find out that my wires just pull right out, and easily too, there is little resistance and it can slide out. I hate these spring terminals, give is screw clamps! Anyways, have you guys seen or heard of it this...
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    Final LFP Charging settings with Batrium BMS?

    Hey all, Looking for a little input and opinion on some charging settings including the option for ramping current. After what seems like forever, I've officially connected my eve 280ah cells to my MultiPlus II 2x120 Inverter in my RV. Now that everything is connected and doing its first...
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    Custom cover for battery mains?

    Hey everyone, I’ve hit a roadblock on my design and looking for some fresh ideas. The closeup photo below is the main Pos/Neg of one of my batteries, I’d like to make a custom cover for the Pos terminal. In all honesty, I’m not concerned of anything touching it due to its location and it’s...
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    The best solar clamp meter! Fluke 393 FC

    This bad boy arrived today and I’m pretty excited! The Fluke 393 FC - first CAT III/1500v clamp meter! Now, granted I got this for work and not needed for 98% (possibly even 100%) of the DIY installs on here, and my other Fluke tools would do just fine for my personal needs, but it’s still...
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    Different cable lengths to battery switch?

    Assuming that the overall cable lengths ARE identical, does anyone see any issues with having the length to the battery switch different for each battery? Quick diagram below, thanks!
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    Custom aluminum battery compression enclosure

    Here’s the start of my compression enclosure for my EVE 280ah cells. I know it’s still debatable whether to compress these or not, I decided awhile back I was going to compress mine. However recently after seeing how companies such as the various server rack batteries build theirs with no...
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    cable length from battery to distribution to inverter?

    Hey everyone, The attached drawing shows a quick sketch of the current planned cable path from my batteries to my DC Distribution and then on to my Inverter. The devices are to scale and the big dark gray area you can assume is the area I have to work with. Does anyone see any issues with the...
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    How many tools does it take to crimp an MC4?

    I will have zero second guessing my RV solar install :) now if I would just finish it already and in case your wondering, my 8awg PV wires insulation is so thick I had to remove the thin outer black insulation layer to fit the MC4 compression fitting on haha. It has a tight seal against the...
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    Solar panels finally mounted on RV (residential style)

    I finally got my solar panels mounted on the roof of my fifth wheel, nothing wired yet but this was a big step forward in my process. I had been trying to mount these for two months but couldn’t get a good break in the weather. I spent a lot of time deciding on install methods and wanted...
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    SOLD- Victron Touch 50 Display

    Hey everyone, I'm selling my like-new, with box, Victron Touch 50 display. I've only used it on my test bench, still has the plastic protective cover over the screen as well, includes box and supplied bracket and HDMI cable. It's never been mounted. The only reason I'm selling is because I...
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    Quick non-scientific crimp tests

    I did some quick testing tonight as I was noticing some interesting things preparing to crimp various wires for my solar build. I started with UL listed components thinking that would give me a better chance at the right fit for each item. Wire - 2/0 Ancor UL listed wire Lug connector -...
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    Batrium CANbus comms to Victron for Low Temp Disconnect

    Hey everyone, I've been playing with different ways to configure my Batrium Watchmon to my likings with my Victron Cerbo/Inverter/MPPT. For basic functionality, I have the Batrium communicating with my Victron gear via CANbus so I know that is working. The Batrium shows up in my Cerbo, and I...
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    Batrium setup without shunt?

    I have a Batrium as my BMS and they only support their shunt (shuntmon), which I do have. I also have Victron Multiplus II inverter with the Lynx Distribution including the Lynx shunt. Originally I was trying to setup the Batrium shuntmon circuit board to the Lynx Shunt block directly...
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    PV stripper and 8awg crimper, success!

    I’m a big fan of tools that just work, and using a razor blade for the thick insulation on PV wire wasn’t an option. i came across these tools from Rennsteig (I love me some good German tools) and just tested them for the first time today and they’re perfect! The stripper is specifically for...
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    Custom Shunt, combining Batrium + Victron Lynx

    Before you say it, I know there are MUCH cheaper, and easier, ways to do this, and ways to do this without using the Victron Lynx Shunt entirely... but that wouldn't be as fun :) I'm doing this purely because I want to and for aesthetics. So keep that in mind as you read. I'm sure I'm the only...
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    2 weeks of top balancing finally complete! 16 280ah cells

    Finally, after two long weeks my 16, 280aH cells are finally top balanced! I've had my cells for about a year now unused because I had been waiting for the new MultiPlus II 120v to come out. Now that I have one I'm getting the rest of my system ready which means time to top balance my cells...
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    battery and system fusing size question

    Hey all, looking for some input on a couple items. I attached a quick rough diagram to help show a portion of my setup I'm working on and where my fusing questions are. I'll have a Lynx Shunt with a Distributor on each end, the battery side and the load side. the fuse for the Lynx Shunt takes...
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    Finally got some of this unicorn 8awg PV wire!

    I had been looking everywhere for good 8awg PV (UL 4703) wire and that alone was difficult. Then I upped my specs and decided I not only wanted 8awg PV wire but also tinned copper and a high strand count. Found a couple/few spec sheets online, called many companies but nobody offered it anymore...
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    16 cell 280ah 12v config, final answer?

    So I've gone through many variations for my battery pack from 48v to 12v, what to parallel, what to series, what shape, using a bus bar to parallel each 4s pack, everything haha. I think I've got my final answer. I now have the new MultiPlus II 12/120/3000 so I'm set to 12v now. I have a...
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    Using Victron Lynx to connect battery bank?

    So I was looking into the Victron Lynx Distribution setup as I really like the design of it for my DC loads and I came across this photo (attached) in the manual for it and it got me thinking about using it to parallel my cells together. since this is able to be fused for each of the four...
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    Help deciding how to assemble my 12v 16 cell battery bank

    Hey everyone! looking for some input on assembling my 12v bank with 16, 280aH cells. I was set on a 24v system but then victron released a 12v only multiplus II, sooo now I’m going 12v route haha. for what it’s worth, I’m not concerned about BMS options as the Batrium will support either of...
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    charge lithium batteries ONLY from RV Generator

    Hey all, I'd like to do some boondocking in my toy hauler trailer next month for a trip to Utah I have planned already, but I've still got a ways to go on my solar build. So here's what I'm thinking so I don't have to be running off of my generator 24/7. My toy hauler came with a factory...
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    Deciding on Victron MPPT for my RV?

    Hey friends, I’m currently looking for suggestions on which Victron MPPT to get in terms of size and options, this will all be installed in my fifth wheel toy hauler. what I have so far: 16 280ah LFP batteries, will be 24v Batrium BMS Victron Cerbo GX next items to purchase: 4 405w solar...
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    Help, getting a 24v alternator made

    I’ve mostly decided (90% sure) I’m going to add a 24v alternator in my truck, it’s intended purpose will be solely to charge my battery bank in my fifth wheel. I’ve been talking with a company that will custom make one for me, 24v 150A. I already have my battery back which is 14.3kwh of lifepo4...
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    Temporary LiFePO4 battery charging solution?

    Hey all, I have 16, 280Ah 3.2v cells for my project and a Batrium BMS. But, that's all I have so far so can't do much with it. Right now the cells are fine, they are all connected in parallel hovering right about 3.2v. I will eventually do some type of Victron inverter/charger but in the...
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    “Commercial Use Only” panels??

    I’m looking at some LG 400W panels for my RV build, I keep seeing a note on some of their panels that say commercial use only. does anyone know anything about this from a warranty standpoint? I know I can physically install them and they’d work great, just want to make sure I’m covered in the...
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    I caved, just ordered a Batrium for my BMS

    I’ve been deciding on what to use as my BMS but still had some unknowns. For various reasons, I decided to order the Batrium watchmon4 with 16 blockmon-M8’s and their 500A shunt. obviously it’s more expensive than some of the other currently popular items such as Chargery and the battery hookup...
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    Cons of 48v setup for RV?

    I’m going to do either a 24v or a 48v setup for a 5th wheel toy hauler. I have 16 x 3.2v/280ah cells on the way so I can either run 16s or 8s2p. i haven‘t purchased anything else yet until I decide. I know I’ll be starting with 4 residential panels around 350W each, I know I’d need a 48v to 12v...
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    New here building a system for a toy hauler

    Hello everyone! been watching a ton of Will’s vids and found the forum as well, looking to build a sweet solar setup for a 40’ toy hauler to full time in. Learning a ton and can’t wait to start building! I think I’m about a month away from being ready to order material. Much more research still...
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    Comparing panel wattage to efficiency?

    as I’m comparing similar panel models from the same brand, I was curious as to how the panel efficiency compares to its stated watts. for example, let’s look at these two panels: 400W @ 19.5% 370W @ 21.5% since the lower wattage panel has a greater efficiency, would these panels be pretty...
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