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If enough people are interested I can deal with seplos to design a new Jansen for 4 mccb style breaker and 50/70 mm cable. There is an initial design cost to share like what was done for the diy280 box.

use mc4 connector with embedded fuse if you want something simple.

Hello everyone, I have a company that is working on designing a custom 16s eve LP280K cell box that includes their own BMS 200A. I spent the money to have them do it. And hopefully some of you will be interested (and possibly share the initial cost ;-)) anyway, here is the initial design. The...

almost ready to ship ;-)

in fact you have double conversion in place on some voltronic base. ACin -> DC + solar DC => DC_to_ACout . ACin is never connected to ACout, @Mattb4 is right ;-) .

How I wish they have EU warehouse :-)

I was not too high, around 1000 $

Sunsync is same as deye, compatible with pylon. You can use a canbus seplos bms, if you want bms communication

and this double conversion is necessary to get the 0 delay transfer switch on some model

Yep All answers are in the thread. To make a long story short, Amy was supposed to make the box, after some delay, she said "why not just ask seplos to design the box". Then I asked Amy to send the cells to seplos, and I started the thread. I paid the design fee. I was pretty sure this box...

This is quite standard, I posted a pdf with specification in this thread and someone posted the link to the original terminal vendor where you can get the exact specs. :-)

Never buy an inverter without pylon compatibly, it is the most widely available protocol use by other battery brand. seplos has support only for a few growatt model. you need to test the growatt firmware.

Too many people reports to have received dead cells from them on the forum.

I have no special insight, sorry, everyone is waiting to get a hand on the box, even me :-) . But you can be sure after the first review if everything is positive , the demand going to be high and the delay probably.

Get it directly from seplos , specify with CAN or RS485 when you place your order.

if you don't want to build it yourself, you can also ask this vloger to sell you one of his board (see at 7:29) ;-)

yeah it is not the same. I just want a new JASNN to connect my inverters and battteries with breaker :-) . I'am trying to make it suitable for others. So let say should be able to : - connect up to 2 x 8K inverters - connect up to 2 x 4 batteries (2 stacks of 4) - breakers...

well, not enought people seem to be interested, to get a JASSEN update yet ;-) So until I get more than 4 batteries, I won't cover design cost for this change.

that the funniest thing I have ever heard about writing ssc/inverter on batteries. . look for an other supplyer

if I understand correctly, you bought EVE non EV grade cells, and you expect them to pass EVE test protocol for EV grade ?

For those who had requested the box is compatible with EVE 304Ah cells now.

grrrr, can't wait

Ask seplos to send the box to Amy, and ask Amy to send the cells and the box

I was talking about Amy Wan, contact is on this forum

yes they can. they increase with low temperature. check you panel temperature coefficient spec.

One more cheap voltronic clone without any useful wiring documentation ;-) - if you didn't add a battery this device won't survive long. !!!! - this cheap inverters are known for not handling correctly bonding neutral to ground in all situation. On this model you need an extra device...

I'll share with you one useful tip about shipping the box. As I ordered my cells from Amy W. and Docan, I just asked her (Amy W.) to handle shipping both the box and the cells. (shipping cost was the same) then seplos send the box to Amy. And I think I'll do the same for all my next cells/box...

Nope, reading only the voltage is not accurate. The documentation doesn't go into the glory detail. The BMS, need to be first calibrate in order to evaluate the SOC. The seplos BMS maintains the SOC according to the charge/discharge current and voltage sampling. (same as victron battery...

I don't think you can make it a lot cheaper. don't forget you need the battery terminal, bus barre , cells insulation ans protection, flexible bus bare, fuse , fuse holder, balance pcb, ... You can't beat chinese machinist. there is a similar box available, cost less, but if you add every...

I'am not sure, I didn't anticipate it to be usable with 304 cells, I had to send them the 280Ah eve cells. but if enough people are really interested in 304Ah cells support, it is doable, but I won't be the only one paying for the the design fee again :) . Anyway let's wait and see for...