diy solar

diy solar

Luyuan battery case

ArthurEld said:
The class T fuse is between the battery positive terminal and the breaker. I beat myself up deciding how to mount it.
I attached a couple blocks of wood to the top of the inner plate that holds to BMS. Then screwed the class T fuse holder to the blocks.
Turned out to be easy.
Click to expand...
I wired mine breaker first to use as disconnect switch, no load. Can shut off breaker and replace or change fuse.
 
Zwy said:
Working on my pair in my free time. The hole for the breaker was too small so had to modify that. I'm using the older JK BMS so I'm fabricating a plate and using standoffs to mount it. Class T might be fastened to the side of the case. I'm waiting on some 6AWG terminals for the BMS leads.

Had to unbox 24 boxes of cells yesterday, shop had cardboard and foam all over the place.
Click to expand...
I thought about the insulating value of all the foam and considered using it in my un insulated garage, but I think it is pretty flammable.
 
S Davis said:
I thought about the insulating value of all the foam and considered using it in my un insulated garage, but I think it is pretty flammable.
Click to expand...
It is very flammable, my wife burned it this morning in about 3 minutes. :ROFLMAO:
 
ArthurEld said:
Took me a minute to understand what you are saying. I see EN for English
Click to expand...
I had a mini panic of my own when i fired mine up thinking I’d need to sift through multiple jk display firmwares then find a way to kludge a usb to RS485 to update my $30 jk display.

Then I just hit that button. lol
 
Zwy said:
Doesn't matter before or after if you turn off the breaker before replacing the fuse.

:ROFLMAO:
Click to expand...
Well i break the connection to the main positive before the fuse if not you always have power to the fuse, I would rather not have all that potential when using wrenches to change the fuse.
 
It is mounted really tight inside a metal box.AF7281FA-771D-4C7B-A921-26D13033DE15.jpeg
 
Last edited:
S Davis said:
Well i break the connection to the main positive before the fuse if not you always have power to the fuse, I would rather not have all that potential when using wrenches to change the fuse.
Click to expand...
The potential is always there.

One could just as easily drop a wrench on the cell terminals when working around the battery. The best practice for safety is to remove both + and - leads from the cells and cover the cells.
 
@Steve_S question for you if you don't mind - why are you switching out all your existing JK BMS for the new inverter comm ones? I thought you didn't use comms? Are you going to now?

To anyone - how are you chatting with Amy? I used the contact form on her website https://www.luyuanbattery.com/ to ask some questions about the box. I don't see a chat box there. I don't have an Alibaba account and call me crazy but I'm kinda trying to not have one.
 
SparkyJJO said:
@Steve_S question for you if you don't mind - why are you switching out all your existing JK BMS for the new inverter comm ones? I thought you didn't use comms? Are you going to now?

To anyone - how are you chatting with Amy? I used the contact form on her website https://www.luyuanbattery.com/ to ask some questions about the box. I don't see a chat box there. I don't have an Alibaba account and call me crazy but I'm kinda trying to not have one.
Click to expand...
To piggyback on the other thread. And no, I’m not an EEL fanboy but it worked for me. They do sell boxes with JK BMS as well.
I think the luyuan offers more flexibility, but there are options for ya
 
I have Midnite Classics I can access via NodeRed & Other SW. Intended to plugin my battery packs & more into that setup. The Inverter BMS has features & functions that I wanted & suggested after I edited their manuals & using their previous BMS. (love how some took credit for the work of others) My Samlex Inverter (ModBus/CANbus & more) cannot interact directly wit the new JK's but I put the JK People in touch with the Samlex people I interact with and they are working on it. I have the Samlex protocol stacks as a Developer with the NDA's so I can't share them, sorry folks.

When I deal with Amy, we use the Alibaba Messenger tool (extended chat) or via E-Mail depending on the subject etc.
Link Here: https://message.alibaba.com/message/messenger.htm?#/
Now I do login to Alibaba (using Google Sign-In) and never had a problem over the years... Well ok, sometimes I get vendor spam there but very little.

TIP FOR EVERYONE: Tell them you are coming from DIYSolarForum ! wink, wink, nudge, nudge.
 
Are you stacking your cases or attaching them to some kind of racking somehow? I don't know what the load rating of a 4 post server rack is but it seems these would get too heavy very quickly. Maybe a half height server cabinet...
 
I am stacking mine 5 high with wheels on the bottom battery. I plan to set them on top of each other. The wheels are wimpy looking. I will only move them a couple feet if at all. And I will make sure the path is clear so I don't have to run over anything.
 
Do they have feet or something to somewhat lock them together? I could see my clumsy self bumping into a stack of these somehow and knocking it over :eek:
 
SparkyJJO said:
Do they have feet or something to somewhat lock them together? I could see my clumsy self bumping into a stack of these somehow and knocking it over :eek:
Click to expand...
I'll let you know when I flip over a box without wheels but the top is flat so I doubt they lock together. I will push from the bottom if I need to move them.
 
ArthurEld said:
I'll let you know when I flip over a box without wheels but the top is flat so I doubt they lock together. I will push from the bottom if I need to move them.
Click to expand...
I've seen some of the designs with latches that connect to the unit above/below
 
Reality is I shouldn't put them where I could do something stupid like that. And I should be plenty careful around these things. Maybe even if I just used a galvanized pipe flange bolted to the floor and had a pair of vertical pipes floor to ceiling to act as a guard to keep the worst from happening.

The price of these boxes is great, but shipping may kill. Dunno. Maybe I should try to convince the wife that I should buy another set of cells along with the boxes since I'd be paying shipping anyway... She'll tell me we're trying to save money to buy a homestead property, I know, but I can try right lol
 
I am sure I can move it by pulling the handles on the bottom one. And I should be comfortable with the position when I only have 3 stacked. All I need is to have one of the wheels break when I'm trying to move 5 stacked
 
S Davis said:
Yes, and still.
Click to expand...
Zwy said:
The potential is always there.

One could just as easily drop a wrench on the cell terminals when working around the battery. The best practice for safety is to remove both + and - leads from the cells and cover the cells.
Click to expand...
Not where I am working with the breaker off, before the breaker on the cell side then yes.
 
Zwy said:
The potential is always there.

One could just as easily drop a wrench on the cell terminals when working around the battery. The best practice for safety is to remove both + and - leads from the cells and cover the cells.
Click to expand...
Ok
 
I'm ordering one of the JK inverter BMSs (JK-PB2A16S20P) for $109 with the front panel and the inner compression/BMS panel both for $19.
Since it turned out my regular active balance BMSs are so old they don't work with the displays in the cases I already have, I am also ordering 3 active balance BMSs (B2A24S20P) for $108 each. Air shipping is $89 for everything
In the future, I may convert all of my batteries to use the JK inverter BMSs but I don't think anyone has them working closed loop with the Solark yet. Using multiple JK inverter BMSs closed loop isn't working yet either.
This is a never ending project and I love it.
 
You must log in or register to reply here.

Similar threads

Alkaline
Basen EVE 280 Dead as a Doornail in 3 years.
Replies
13
Views
968
Loadtoad
L
Alkaline
EVE Official Alibaba Store, the end of Luyuan and other alibaba sellers?
2 3 4
Replies
79
Views
7K
JJJJ
J
S
Cheap LF280k battery box from Luyuan
Replies
20
Views
2K
SolaroSsaurius
S
C
DIY Battery Case for Eve 105s 48v/16s
Replies
11
Views
443
Offgriding
O
kolek
Lowest safe voltage for long-term storage? (LiFePO 280Ah)
Replies
22
Views
557
hwy17
hwy17

diy solar

diy solar
Back
Top