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Ok.. makes sense. If you have the space to put enough panels for your needs, why go through the trouble of extra maintenance/cost/etc.

Love it! Yah.. in my case they are in a ventilated area so should be fine. But I have a few fans I can wire up if need be. Eventually the goal is to move all this in to a garage and set up whole house storage/etc. But for now its just starting out. Build it little by little.. given the costs of...

Hmm.. I would imagine if they can last 10 to 20 years with recharges.. a year on a shelf wont hurt them much. Dont know for sure though. If the price is right and the longevity without use isnt an issue might be a good deal.

Never even heard of BYD. I am curious with LFP batteries.. what you get. IT seems like you should get extended range.. but then LFP are heavier generally but not by much. Do they offer more storage than lion? My understanding is LFP wont be "as quick" 0 to 60 or 40 to 80 passing, etc. But still...

That is slick.. but now you need panels to put out enough power to rotate a bigger motor.. that ALSO has panels putting power out to a MPTT so that you actually get power from it. :D

Well shoot.. still $89 a cell. Was waiting for a few more replies as to how they turned out for those that bought them. Can someone elaborate a bit on the diff between A and B grade? Being new (are they new.. or said new but used previously) I would assume if they are same build as grade A, then...

Alright.. so I am charging the 3.3 (the one that was 3.8) back up to 3.5, and the other (3.2) up to 3.5). I think the rest are around 3.4 to 3.5. So I'll get the battery parts set up, then hit each right before I put the PCB on and bolt it down and connect it. Thanks for your help.

So I read all the links that popped up regarding this and they are all for 12v and couple for 24v which if I read correctly from other posts 12v uses much thicker wire than 24v and 48v is even smaller. However, I want to be sure before I finish my battery and wire everything up. I have the...

Yah.. I will probably pick up the Victron 48v to 24v 12amp 280watt stepdown device. I am not entirely sure how to wire it up. The one thing I don't quite know is if the big red/black cables on my DIY batter are for output or input. I assume output, which I would assume then goes to this 48v/24v...

Oh very cool.. I didn't see this or missed it! So up to around 15 feet in length I could handle 2AWG. So the one thing I can't seem to figure out is where I attach cables from inverter to the distributor. I assume the inverter goes on the end +/- and the battery attaches to one of the 4 ports...

Hi all, I am building my first 48v bank (16 x 3.2v cells). It's the Jehu Garcia battery kit with his rack mount server case, etc, 100a BMS from china, etc. I am going to be getting the Victron MultiPlus II 3000 or 5000 (ideally 5000). But that is a couple months out give or take finances. In...

Those little wires though look like they power something like the cerbo OR they are the small wire that comes with the Distributor? I think I saw one in mine.. and I thought I saw some "hack" to enable the LEDs or something. In fact I bought something from amazon per a video that shows how you...

OK.. thank you for that info. Yah.. makes total sense. One less inversion of AC back to DC is good. I wanted bluetooth mostly so I can eventually monitor ALL my victron gear as I add more over the near future. But I am fine without as well. Is Victron the only way to go.. or are some of these...

Hey all, somehow my little crappy 10a/30v variable bench supply got rotated to 3.9v instead of 3.5 that I was set on. So now I have my LEV60 3.5v max charged up to 3.92v. I took charger off its down to 3.88 so far.. but is there a way to discharge it faster, safely? I don't have any sort of 3v...

Trying to understand how best to set something up that will charge from solar if solar is providing input, but if not charge from AC to ensure battery is charged.. but ideally charge off peak hours if there is enough juice in the battery to provide power. Does the EG4/GrowWatt/Victron have a...

I found one from some battery place, but jag35.com is the place I bought them from: https://jag35.com/products/high-discharge-600a-lifepo4-1780w-prismatic-cells

What exactly does this mean? Basically saying we wont be able to buy any grade a (or b) batteries and build our own packs? Is that like.. going to make it impossible to buy/ship to some states? What about brands like EG4.. would those still be acceptable? Those aren't too bad from what I've seen...

OK.. so last question then.. should I put them ALL in parallel (I did buy 40 bus bars to connect them together) and charge it that way? I would prefer not only because I already have the batteries in the rack mount with the compression rods in place.. so was hoping to avoid taking it all out...

Damn.. so many things to figure out. So what makes the 280 have 2x the recharge cycles of a 304? Seems like 280 would be way more worth it then if you're looking more for longevity and can suffer a little less capacity.. hell just add 4 more 280s to a 48v system right?

So after reading everyone's replies.. I dont know what to get ROFL. There is the worry of that NEC2020 issue, and that 302s have 1/2 the charge life of a 280, but 280 is no good cause it goes down to like 260 to 270. Would it be better to just start grabbing EG4 100ah rack mounts.. and go that...

How would that work if you have 2 or 3 different battery setups though? Or can you not mix different AH/WH 48v battery banks using the Distributor? I assumed part of the point of the 4 posts were to handle multiple power sources, e.g. MPTT/solar, multiple batteries, etc.. and that the end (if...

So these LEV60 cells claim up to 600a of peak output (or input?) I think. It's been a damn long time since my electronic class in HS, so I cant remember if you have 16 of them if that multiples, stays the same or what lol. But assuming I will be building a 2nd one soon (have everything but the...

Hey all. Got my battery kit ready to go.. but I read that all cells must be top charged and balanced before you assemble the 16 3.2v in to a 48v setup and then use your daily charger on it? My cells arrived with 3.02v charge. One or two have 3.01 and 3.03. Do I need to individually charge each...

OK.. and I am OK if it takes a few weeks.. I'd MUCH rather have my cells in tip top balanced condition before I assemble the 48v battery. But it's odd to me that none of the videos seem to talk about this one step. Like.. I would preface ANY new battery setup with "BTW.. you need to top balance...

Hey..thanks for reply. So I ended up getting the River 2 Pro, 768wh battery. It can do 220watts input on solar, but I could pick up an MPTT external unit that can handle a lot more solar input.. in fact what I decided to do was buy one of Jehu's battery setups from Jag35. Its a 16 cell 74ah 48v...

Interesting. OK. Well I did get the 500a battery monitor which I thought goes between the Distributor and battery NEG cable to give me details on the one 48v battery bank I have. I don't know if there is some way to tie in that China BMS to the Victron app, doubt it. So I got the distributor vs...

OK.. friend who has built a few batteries said to connect a lower voltage cell (same cell) in parallel to help discharge higher to lower. Had another one at 3.2v so figured 3.8 to 3.2 will equalize to about 3.5 each. I'll keep an eye on it make sure it stays around 3.5. Goal is to top charge all...

Hmm.. so I tried that approach.. I put the battery that was at 3.8v to the 3.2v in parallel. I checked it and what I noticed is instantly the 3.8v was dropping down in voltage. The 3.2v didnt go up much. I then took it off last night before going to bed.. it only was connected for about 20...

Oh this is a cool setup thank you for sharing. Ok I think I am getting the general idea. So on the POS side I see you have the switch, is there a fuse ALSO (not shown) going to the battery (and is it on pos or neg side.. shouldnt matter I dont think)? In the pic you have the Victron battery...

So an odd slightly off topic but in line with my wiring questions.. when I connect my battery (which is charged to 56.3v right now) pos/neg to the victron (via distributor).. I assume that it wont spark/etc cause I'll have that switch in line and turned off. But once I flip it on.. does the...