Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
I'll be around more or less depending on what I'm up to.
Luyuan battery case
- Thread starter dddem
- Start date
So when we order, do just say I want the Steve_S case? Also one with wheels
Please list the details of your case.
Thanks
Scat
ArthurEld
Solar Wizard
I ordered wheels and they seem to work just fine. One thing I'd add if I did it over is locks on at least 2 of the wheels.
If you like that idea, Amy will most likely do it for you. The locks will hold it in place while you position the other ones on top.
It would be a little easier with locks but it's not a big deal.
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That’s what I did, mentioned Steve S diy solar forum, looking for an 8s case with single M8 terminals, jk200a non inverter BMS with display and 8 280v3 cells with dual terminals.
SoggyShoes
Solar Enthusiast
That is pretty much what I did.
I just said I want what @Steve_S got with the new EVE 304Ah double thread cells. Amy know exactly what I was talking about and even asked if I wanted single M8 thread case terminals like Steve or double. I just followed what Steve did.
So they will be just like in this post: https://diysolarforum.com/threads/luyuan-battery-case.44827/post-981617 I think Amy was happy that she already had the template from Steve's case.
S Davis
Solar Addict
- Joined
- Sep 25, 2021
- Messages
- 726
Only four more
ArthurEld
Solar Wizard
I bought my case / cells from Amy because I knew Steve worked with her to perfect the kits. They are still ironing out the details because these batteries are still being developed. They will never stop changing / improving. The design will keep changing as people's customizations become the new standard.
SoggyShoes
Solar Enthusiast
How long does the boat usually take?
It looks like UPS will pick it up from the boat or container once in the US.
It looks like UPS will pick it up from the boat or container once in the US.
S Davis
Solar Addict
- Joined
- Sep 25, 2021
- Messages
- 726
My first order shipped 2/3 and arrived 3/23, second order shipped 3/2 and arrived 4/6. FedEx went live about five days before arrival. Third order is supposed to ship this week.
SoggyShoes
Solar Enthusiast
Back to the grounding of the cases that was discussed in the last couple of pages in this thread.....
So wouldn't the ground wire need to go back to where the system is grounded like to the main neutral-ground bus bar? Or else wouldn't you get the issue of potentially electrifying the case like if you tried to connect a bonded generator as a grid backup? It seems you would want the generator equivalent of a floating-neutral with the battery.
Or am I missing something significant about batteries and/or DC current?
Now, I assume the same scenario holds for an RV as the frame of the RV is like the ground (Earth) for a land based system. I am much more familiar with AC from residential remodeling and construction for over 10 years. I should probably ask Vehicle Mounted System threads about how the grounding works with both AC and DC in the same isolated system.
So wouldn't the ground wire need to go back to where the system is grounded like to the main neutral-ground bus bar? Or else wouldn't you get the issue of potentially electrifying the case like if you tried to connect a bonded generator as a grid backup? It seems you would want the generator equivalent of a floating-neutral with the battery.
Or am I missing something significant about batteries and/or DC current?
Now, I assume the same scenario holds for an RV as the frame of the RV is like the ground (Earth) for a land based system. I am much more familiar with AC from residential remodeling and construction for over 10 years. I should probably ask Vehicle Mounted System threads about how the grounding works with both AC and DC in the same isolated system.
Alarchist
New Member
I'm not an electrician.. But you probably mean grounding the cases back to the main DC negative-ground point. Not just the AC Neutral-ground if you have one. - I do as I'm off grid so I have a Permanent Neutral-Earth (PEN) link inside my main generator (to simulate what the grid would have provided) so the downstream RCD's (GFCI) work. If you have a central AC ground, then the main DC ground for all DC grounds should also be connected there.
wpns
Solar Joules are catch and release
Umm, doesn’t the grounding-the-battery-negative discussion depend on the details of the inverter?
Yes, you should ground the battery case, but should you always ground DC-minus?
Yes, you should ground the battery case, but should you always ground DC-minus?
Thank You
ArthurEld
Solar Wizard
I have a ground bar in my Solark and neutral bar. They are connected to the main breaker box in my garage about 50' from the shed.
I am going to clean the paint off my battery case faceplates and make sure the main part of the case is ground connected to the faceplate.
The ground wire will connect all 5 cases together then go outside to a ground rod.
I am planning to put a ground rod outside of my shed separate from the ground rod by the main breaker box.
Right now, my shed solar panel frames are connected to ground bar in the Solark which I think is wrong.
I will disconnect the solar panel frame ground from the Solark and connect it to the new ground rod outside of my shed.
This subject is extremely confusing and there is a lot of disagreement about how to use ground rods. I am not an electrician but I have an electrician friend who thinks what I plan to do is correct.
Quattrohead
Solar Wizard
Nope never. Only vehicle manufacturers have ever done this because they are cheap and lazy.
Well it saves a LOT of copper wire (which is a lot of cost AND weight) if you don't have to run a positive and negative for every circuit everywhere.
Apparently, the chassis of the vehicle is good enough. They design around it. Technically, the chassis is not really ground because, well, rubber tires and all...
ksmithaz1
Solar / EV Junkie
Ground is whatever is the most dense mass the potential can hit. A radio works in a car because the antenna uses the chassis as a "Ground" for the radio signal induced current in the aerial.
There should only be one point of connection between all earth grounds (rods) and all "grounded" metal things above the earth. Otherwise you create multiple paths for problem currents to get to ground.
On Luyuan related topics, I added 4 more 280 cells to my order (total of 12). Was only $390ish more once shipping and other charges were factored in.
I have my old JBD 4s and my cheap 1500w inverter from my first build that I mind as well put to good use . . .
I have my old JBD 4s and my cheap 1500w inverter from my first build that I mind as well put to good use . . .
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