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All, I recently purchased additional modules for my HomeGrid from PP. I worked with Lori on this and everything went great. From giving me a great price to processing the order quickly to ensuring the modules were not delivered while I was out of the country, the service was outstanding...

That's impressive production. WRT points of failure, if the comms link is broken, it becomes "no loop" and reverts to Voltage. The only real complexity I found with my rig was making the longer cable I needed. But, as I said, required === no. There are likely far more systems in use today...

See now, this is really interesting. Solar Assistant can, in fact, relay data, but right now it's principally via MQTT. I use this to integrate my Sol-Ark into Home Assistant. It's actually possible to update settings via this chain as well.

Ahh, that could be the point. I'm running Beta as well. At this point, I can edit any setting (both Power Management and Inverter Settings) and it will update them. After initial submission, it says "Rejected" and then the setting updates a few seconds later.

You are, of course, correct about RS485. I corrected my post to reflect this. I've also been able to establish comms with SA from the HomeGrid battery over CANbus. My confusion. Interesting point about the SA website. You can absolutely edit Sol-Ark settings on the SA software and push them...

Yes, closed loop is beneficial. Fact. Assuming the BMS is decent, getting SOC data, along with charging parameters from the BMS is useful and beneficial. That said, is it required? No. In my case, I am using a Sol-Ark 15k with HomeGrid batteries. The BMS on the HomeGrid instructs the...

No changelog :mad:

It all depends on your needs. If you're in California, you've got to use CPUC "approved" gear, and the Sol-Ark + Homegrid combo is a great choice. If I weren't in CA, I'd strongly consider other alternatives, but I've got to say, my Sol-Ark 15k + Homegrid battery combo is pretty damned...

Simply being commercial certainly does not guarantee well run anything. Capitalism is a peculiar system in that it requires INFORMED consumers that make choices with their dollars. Government run services or government regulated monopolies are not a substitute for informed consumers. WRT...

Unfortunately, the government isn't actually good at anything, so if we try to hand it back to them, it will be even worse than it is now.

Two big differences that I see for the HomeGrid specs are a) UL9540 certification and b) 300A discharge current rating for 14.4kW/h and above packs. The Growatt Axe 5.0 seems like its rated current is 60A with a 10s peak at 300A. Don't know if that's for a single pack and it stacks (getting...

If you're gonna do this, it would be easier to simply make the device an MQTT provider. Could be something like this to leverage the existing RS485 support: https://github.com/nygma2004/growatt2mqtt Would be an option, but since this left the "budget" category several times...

First, I understood it as "several" which could mean as many as 4. Second, you do you. ?

It's worth also considering "floor loading". You're talking about stacking up several hundred pounds with a 24x24" footprint. Most RV storage bay floor's won't handle that without reinforcement. You'll rapidly find yourself leaving a pile of batteries for the cars behind you as your rolling...

Every one of my cells fall into serious deformation category. So 8 cells.

Michael, I sent pics last Tuesday. I’ll resend.

Michael, can you confirm you received my 4 emails with pics?

Michael, I sent 4 emails with pictures: Boxes, labels, voltages and damage. There should be be 51 photos in total. David

That charger at the end is hinky AF.

In this scenario, I tend to agree with HRTKD. If you lose up to 11 x 4s packs, you still have 12v for critical loads. On a boat at sea, that might be critical. Totally a back of the napkin opinion, but…. Other thing that does is limit your reliance on being able to move huge amperage through a...

@Michael B Caro I sent you pics in PM for my cells. I can confirm that one of my two boxes had zero packaging beyond the top and bottom foam. Nothing on the sides, nothing in between cells. The other box had small pieces of loose cardboard that was supposed to go around the corners of the...

Sorry, forgot to mention the shunts. There are two because one measures PV input and the other measures overall battery input/output. They are setup like that for a couple of reasons having to do with circuit design. While it’s not as clean (I had them connected to the bus bar directly myself...

Hi. I am using the Electrodacus SBMS0 bms with Electrodacus DSSR20 charge controllers. https://electrodacus.com/ In this arrangement, I do not need an mppt scc.

I'll simply add that my 280ah cells arrived in exactly the same condition. Only difference is that my QR codes are intact. Otherwise, same poor packaging and every cell damaged. Fortunately I don't seem to have any leaks, but the cells are unusable. That said, I still trust that Michael will...

Hi. Two reasons: a) my rig is 50 amp with 2 x 50 amp 120v legs. I intend each leg to be run by 1 inverter. I don’t technically need split phase 240v output to do this but… b) I intend to install a dual zone mini split ac system so I will be running the inverters configured as 180 degrees split...

We need something like Reddit upvoting on this forum, just for comments like this :D

Worth reading this: https://diysolarforum.com/resources/cell-configurations-for-12v-24v-and-48v-lifepo4-batteries.123/

I am using Victron extensively (lots of blue in that picture) except for the BMS & solar control. I am currently sourcing solar panels and have additional 280ah cells coming from Michael. When I have the panels, I'll be doing a test setup in the backyard, feeding into my sunroom, where I will...

That vaping, it’ll kill you! Or at least the electric noose around your neck might. Wow.

I am going 220 in my rig because a) my rig is already 50 amp split phase, so it fits naturally, b) I want a 2 zone system because the size and layout of my rig make it unlikely a single head unit will be sufficient, and c) I want the extra capacit that dual inverters give by splitting the 120...

Starting my RV build. Electrodacus based system, 13kW LiFePo4 build. 50% of batteries have arrived, no solar panels yet. Will update as a I complete steps. Diagram: Test Build (remember, it's a TEST build, so things like cable clamps, zip ties, etc... to be added):

If you want to effectively measure the amount of solar input, you need a PV shunt. Simple as that

Then I too shall say "Thanks". I have learned much from your posts and resources.

additional minor updates based on feedback.

While I am not a veteran (thank you for your service), I have been fortunate to enjoy both San Onofre and Del Mar beach campgrounds on Camp Pendleton. Two of the nicest beach campgrounds around, if you have access. I highly recommend them to those that can get in. Nice rig, similar setup to...