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Soc memory issue? Could the shunts somehow be remembering values from before and now need recalibration for new soc values?

Thank you for the workaround. Having the same issue myself. It started yesterday for me. Edit seems to be working now

As a fellow newbie I am intimidated by the diy lifepo4 option. Be sure to check out the up in smoke forum before you go that route. One advantage of individual components over the aio is if you purchase things with your 48v goal in mind a lot of your learning system costs will also be your...

I get that usage, pv input, and bank size all correlate. What I don’t get is why a 50v array at 8amps would be bad for a 24v 500ah bank. Lets go with 500w daily usage at 20-25w constant load. In another thread it was mentioned that a 20a charge rate was killing some lifepo4 batteries that...

A missed opportunity for education. While the answer is in the question for newcomers trying to understand bank sizing and how everything works together this could have been a golden thread of knowledge. I’ll keep digging for the nuggets of wisdom.

😂 “Hey honey I need you to lay right here while I plug this in…whomp, buzz slap”

In the spirit of DIY I went with some 8” heavy duty castors for the base of my project. At 771lb load ratio each they should handle a few hundred pounds of batteries gear. When I get something built I post it in the thread. For now I’m eyeballing this old upright freezer with a circular saw...

Will did a Youtube on the epoch 460ah.

My understanding of overpaneling is case #1 where you have more input capacity than output ability but are still within the scc voltage and current limits.

Phones break. I’ve yet to get all my pieces together to see how the software side works. Do you need an isp or just a local network? In a remote location sometimes one the other or both are just not available.

if it meets your needs and budget awesome! If it sees full charge/discharge often it might last awhile too. Both have advantages. They are the true AIOs. Highly portable. They meet a variety of application ranges at a decent price point.

Biggest difference I see between is applications. The portable power stations are not meant to be a 24/7 duty cycle piece of equipment. Sure it will work until component failure which is likely battery first. Use it daily and never cycle it I’m betting it dies quickly. That is where your...

65w-100w max charge rate. Anything more would be a risk imo You might be able to hack a buck/boost type module to the dc jacks.. run the solar to a terminal bar and then charge thru all 3 but then again the batteries or bms might decide they don’t like that. If it were me i would find...

Sure you don't sell batteries for a living. *jk Thanks for setting me straight on that too. As you said learning is a constant process and you have to be receptive to all the information not just the bits you want to hear. I also realize there is some tool investment to be made. Tools are...

I thought that was how I understood the mrbf break ability from another thread. I wanted to be certain. I also understand the copper washer thing. It is acting like a busbar and is sized for the load. I did find it interesting that you ran the input from charger and output to inverter on the...

yeah I put them in there as stated "Cheapest pure sign wave" available. I liked the 400w model best of the 3. The ol' hippy and I were trying to see what the cheapest system we could toss together would be. I personally would spend the extra for a victron inverter. (mV versus watts for idle...

very similar indeed. smaller battery capacity in my setup with solar input instead of an ups style. Again it was just a theorized cheapest system and what do we need to tweak to make it safe. 6awg welding on that negative switch to your phoenix as well right? The 12v sockets that is a dual...

solid. thanks for the review. Good catch on the fuses. I was thinking it would never see more than 40a input and sizing it at x 2.56 over that at 100a. Definitely need bigger wires then. Same with the 30a runs. I didn't see anything smaller than 30a for the mrbf. Yeah I wasn't sure on the...

2 people walk into a bar. Don't you think the 3rd one should duck? duh dun cha!!

at $12 for 20w I even thought of using foldable 6v 20w panel arrays in 2p2s configurations with an $8 blade fuse box as the mini combiner box and busbar system. They have multiple fuse ranges from 1a -40a. I could put them in the little small areas around my yard that don't get shaded out. I...

scc $13 mppt style battery options with low temp cutoff $33 12ah roypow (153wh) $50 18ah roypow (230wh) $90 30ah roypow (384wh) fusing $50 dual terminal mrbf block (connections for battery, inverter, and panel positive lines) mrbf 30A (scc to terminal block positive) mrbf 100A (inverter to...

Computers have a lot of temp sensors and variable speed/temp controls for fans and cooling equipment. Most of it is low voltage dc.

200ah 48v server rack. Nice compact and clean looking setup! @facb1202 Is that exercise equipment to charge it? 😝

Thank you for the enlightenment. Learning more daily here. Did a strikethru above so as not to mislead anyone.

More stuff to add to the confusion eh? One guy calling it the holy grail the next saying it blows up in smoke. That right there is the reason I’m here on the forums trying to seperate trash from treasure in the solar world 😝 I came across it in this thread here and was UL listed by a...

i was trying to find an answer to this riddle as well. The one I came across in the forums was another marinco bep product. Up to 120vDC and 400 amp continuous. I’m not sure what amperage you will need. I also looked into breakers but found that more confusing with all the single pole versus...

I saw a YouTube experiment using water to cool a panel

Could always firebrick it! Seal the seams with mortar and put an auto suppression system in. Another advantage of a metal style would be helping heat distribution for a dyi heated battery compartment. I bet a desk model even has convenient popouts for wire runs.

Im trying to better understand where the fuse is going. Are you using a 12v PS to charge lithium batteries that are feeding a blade style fusebox? I would think you would still need that class t for the conduit coming from the batteries since it is the batteries that could be sending all the...

Nice how it has a security feature as well.

Great point. Battery footprint is exactly what i was planning for. The redodo is wider and shorter and the litime is narrower and taller but measuring the case it takes up the same cubic volume.

Yeah I need to keep looking for sure. I realized after I posted that the inside dimensions are too small. I need something 21x42 minimal footprint. It also seems a bit misleading on review. It states 500lb weight limit but elsewhere documents 265. I want something that can handle at least...

I was thinking this model for myself. It had ample room and weight allowance for 4x200 ah 24v batts ((20”x10” footprint each) Mostly curious on what everyone is doing and see what ideas pop out.

So I’ve seen a few “cart”, “hand truck”, garden wagon builds out there. I thought I would try creating a thread to discuss the various models of conveyance they are built upon. Heavy gauge plastic, metal, wood? Custom lawnmower tires and rims? Bargain price or gold plated? Bling or functional...