Today i measured 80 cells (Eve LF280K) from Docan, all are labelled with impedance between 0.17 and 0.18 - but all measured between 0.52 and 0.58 (calibrated YR1035+ and validated with Fluke). I contacted Daisy from Docan ... waiting for answer.
Was my first choice as well but with all the delay I upgraded to air freight. Cells are already waiting, the uplift is nearly the saving in power (35 Euro cent/kWh currently)
Looks good, but as for many, cells are alreay on the ship or ordered/payed. So a kit without batteries would be great (+ optional seplos BMS), i ordered 80 cells for 5.
I asked seplos if they are interested in promotion / group buy price :) They will decide after chinese new year etc.
This souldn't be rocket science, i sell hard drive enclosures for enterprise datacenter with 106 harddrives in, they are 127kg/280lb fully loaded and you can grab them with one handle ;)
Update - no changes for my 5 boxes, still an unused, never scanned label
my order details are:
and payment is already way more than 40 days
i sent them the link to this thread and received a strange answer:
I don't know what to say ... but i will open a claim at alibaba in 48 hours as...
Today we opened the 5 boxes to check for the cables (3 installations, 2 with 2 boxes and 1 with one) and the flying busbars ;)
"Today we opened all packages. All 5 boxes have open, lose parts flying around, the busbars are everywhere. So damage is maybe on the PCB, an electrical test will need...
Today i measured 80 cells that i received end of march. labels are printed with 0.17 and 0.18 milli ohm, but i measured between 0.52 and 0.58 with YR1035+ and verified with an expensive Fluke .. :(
I am on grid, so i need a parallel to grid solution. I get some money for selling exceeding power, but this is just 16 cent and i have to pay tax on that, so around 11 cent per kwh sold (that rate is fixed for another 11 years). But for the non sunny times i have to pay 35 cent, so i want to...
In 9 days my alibaba order is auto accept, i cannot extend the receive time any more, already maximum amount used ... so i payed nearly 1400$ for shipment and still received nothing. I contacted them and told them that i cannot extend any more and in 7 days i will open the case for full refund...
My DPD tracking number started working yesterday. Seplos asked to stop my Alibaba claim - before i have the goods.
Today morning, the same, a screenshot from tracking, i should stop my cases ... without receiving them.
I did nothing, why should i ?
An hour ago the 5 boxes were delivered after 6...
Ok, looking into the PVSOL data the module lookes like this:
Going for 85A MPPT (as the Victron calculator on the website recommends) is 85A devided by 12 -> 7A. 7A is 500W/m², correct ?
My old installation hat 10.32kwp and the 10kw inverter was running a lot in the range above 9kw, i have...
I have to update and hopefully everything is okay but currently i dont feel good.
I payed 900 dollar extra (on March 23rd) on top of the sea freight logistics to get them shipped by air freight. My agent is Jerry Qiu via Alibaba.
March 30 i received the information that the PCB has to be...
okay, then this will reduce my negative mood to bend bars, pcbs and non fixed parts flying around. let's hope they will work flawless (feedback will need a few days)
Looks like Seplos OEM labled with SunStonPower. If you look for the partnumber i assume i am 99,9% correct ;)
As this is 15SP2 you will receive 2 of the shown "boxes" and you can have a look at Seplos DIY 100AH solution multiplied by 2.
I did some math on my own as Seplos will bring an "empty"...
I want to share some experience with docan and qr code scanning.
I asked for 80 cells with the requirements: max 6 months old, 6000 cycles Eve LF280K, never used, with eve test protocoll and received a quotation with which i was fine. Then i asked how to order, so Daisy prepared the offerings...