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I expect this is what we are seeing. I'm not welding experienced but by the looks of the welded stud it seems at least with these Docan supplied cells the same equipment was used as in the YouTube link here. The question I have is, given the thickness of the base being welded onto the terminal...

Ricker, it appears you have net metering that gives you an even-Steven swap for kWh up to your usage - with a terrible price received for any surplus you generate. Here in Communifornia, this surplus or shortfall is calculated once each year for a "true up" billing or credit. The equal horse...

Lampard Lei: Thank you for coming to us here. Your information is appreciated.

Perfect! Thank you!

Ok, so if the big picture is coming in now, Docan has the big advantage, if true, of being able to return defective shipments to Houston and Gobel, it would seem, is a one way trip, take it or... haggle/beg for some adjustment. Also, all other things the same, it is a $5 difference. On the...

Thank you. I learned something and was already on the right track with 250A fuses before I discovered what else was in the bottom of the JBD box.

I don't know, maybe they are "automotive grade", maybe the test report is like an airplane alternator - it's only a special airplane alternator because the stamp on it says so.

Yeah...... no. I see it all. But that horse ain't dead at all, relevant questions remain unanswered. Unless, of course, you can tell us what happens to 3000 cycle cells at a high SOC in a rigid unyielding container.

Ok, well, then it seems it is what it is then with the 260-280Ah statement Docan has made. I suppose I am mainly reflecting off some YouTube tests, one sticks in my head of all of the many cells yielding over 280. I'll adjust my expectations if need be, but I still want what they were having.

I'm working to get as fully educated as I can here. I have two JBD 200A BMS's for a 16S2P plan using LF280Ks. They unexpectedly included these two 400A fuses. Does that sound right, a 400A fuse to protect a 200A BMS?

I can see the two plates as described in the new spec sheet, and twelve washers and six springs between nuts and plate. Selecting springs, if I have the engineering figuring right, six springs each applying 18lbs of force on new cells at an SOC around 30% would approximate the 50kgf described in...

This sure suggests the job can get done with the right tool and settings. My EVE's through Docan look like it got done right and I've had no trouble.

I have an invoice for 64 EVE cells. I see now a declaration on Docan's site that the LF280K capacity spec for the cells they sell is 260-280Ah: "The capacity of 280K produced in 2022 is 260-280Ah" I see EVE factory specs as 280Ah as the minimum capacity. I see a number of happy customers...

Are you planning to do anything with the data like supply a monitoring app?

What you said. I like it. Perhaps once a year with a low SOC, a check of any built up pressure on the nuts is plenty of due diligence.

Well, while I fully agree with Warpspeed's take, I couldn't help but search through spring distributors and consider spring characteristics. I got familiar with force per inch considerations as well as the force that would fully compress the spring in 1-2 inch long springs. With that last...

I have the same question. I just received a first delivery of EVE LF280K's and I'm expecting to find as I test them, what Docan has already advised: 260-270Ah in these. Docan is also testifying that the CATL 280's are delivering 285-305Ah.

I don't know No By following Master Prowse's capacity testing recommendations Docan's delivery of the welded stud variety was perfect in every visible way, there is no "B" on the QR code. I note and reference their disclosure: "The 280K produced in 2020-2021 cell capacity is around 280+Ah The...

Knowing these are EV cells... ...and understanding they are made this way with a thin walled container to minimize volume required for a specific capacity ...and knowing that expansion management must be integral to EV design ...I wonder if it is a rigid containment with the presumed force or...

Yeah, now they show out of stock in China as well. I ordered with Jenny, a first shipment of 16 of the EVE 280 K's just before this change in availability. Wondering now if I have an allotted shipment on the way or an unexpected long wait.

EXCELLENT news! I am right behind you.

I thought grade B cells were now so labelled? What is a grade B cell anyway? So far, it seems I have a very matched bunch of new cells. If they are somehow subpar the specs, and in fact, that is exactly what Docan advises for capacity, it seems they do an excellent job producing to this below...

I figured I had posted quite relevantly on another thread but perhaps not. I have an invoice for 64 EVE cells I have yet to send payment on and my question below is what has me on hold. I see now a declaration on Docan's site that the LF280K capacity spec for the cells they sell is 260-280Ah...

I am connecting balance leads and missing clear guidance on the connection for the last cells in a 16S. Anybody know how this goes? The first connector seems clear enough and takes care of cells 1-13. But I have no 16S guidance on this 2nd nine wire for the last three cells. I think it's easy...

Great. I've got 16 of these should be arriving in days.

(First post...) I am pretty fully researched at this point and ready to start acquiring system components. I see Docan and Jenny, I've seen the issues of cell grades and I'm down to just shopping price and a reliable transaction. I came across Gobel and their $105 for the EVE 280ah K model...

I wonder if anybody has made some of those 6 rod plates for this DIY crowd to replicate that apparent requirement... If a ton or two or three of force will contain one cell, my physics says it will also contain any number of the same in a row. (Right?)

I show $4768 delivered from Docan. From Gobel, I'm doing some easy math of $3360 + a scientific wild ass guess of $550 in shipping = $3910 I haven't run it on the calculator but it looks more than $5 per cell ;) , hence my inquiry.