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diy solar

diy solar

Ruixu 16kWh LiFePO4 Early Adopter

Received my Ruixu 16kWh LiFePO4 batteries a week ago Tuesday and finished up the install to my Sol-Ark 15K. Really pleased how easy the installation went! Wired the batteries to my Sol-Ark 15K and followed the setup for communication and it worked perfectly!
How do you like this Ruixu’s after three months with Sol-Ark? Are you able to max 275A with two batteries?
 
Does the amount of current you can pull from a battery require multiple batteries? Or just when you are trying to exceed the amount possible from a single battery?
 
Thanks for posting. Love to see you unbox and install. Strongly considering this brand. Did you pay $3200 USD with shipping for one, or $3400? Thanks.
Was watching some of Will's older videos where he did DIY battery for 2800 USD for much smaller capacity. Seems about 3 years ago he switched to preferring server rack batteries. I need the outdoor rating on mine.
 
I'm planning on buying 4x of these in the near future to go along with 2x EG4 12000xp's. I hadn't finished my planning during all the black friday sales, and now I'm just waiting a couple weeks to see if anyone has any year-end sales pop up.

One thing on these vs. Eg4's powerpro - The EG4 has the built-in bus bar whereas the Ruixu's don't. Instead, it's $170 for the bus bar, and $150 for the addtional cables (of which I'll need 2 sets for the two inverters). So the Ruixu loses their edge on the $/kwh front when you factor that in. Could always just buy a different bus bar and make my own cables for a little cheaper, but not much...

They're still on top just due to the additional density for me. I'll get a few extra kwh's using roughly the same floor/wall space with the Ruixu's.
 
per code no it really wouldn't be allowed. practically speaking, a bigger eye bolt would require a bigger and thicker mounting plate. looking at the provided picture I'm guessing that they are using an m10 eye bolt. wll on a high tensile m10 eye bolt (the strongest grade) is 640kg 25% of that is 160kg or 352 lbs. The effective force on the sling at the angle they show for a 350 lbs battery 495 lbs or 247.5 lbs per eye. so in proper orientation it would work fine. This assumes that they are using a high tensile load rated eye, which from the pic they probably aren't. (for comparison a load rated low carbon steel lifting eye is only rated at 230kg) also of concern it looks like they welded the eye in place after install which would result in crystallization in the weld affected zone and further weaken the picking eye.

low carbon 10mm shouldered lifting eye
high tensile lifting eye

I'm not saying that these are guaranteed to fail, (standard rigging has a 3-5 safety factor meaning deformation occurs at 3x the rated load and or breakage occurs at 5x the rated load wll=the lower of these two numbers) but if you where on a professional jobsite installing these and got caught lifting them with these eye bolts you would be looking at a 6 figure fine.

I've had some rigging training and agree with everything you've posted. Hopefully people pay attention

However, my instructor said than unless lifting eyes, straps, shackles, etc have "made in USA" stamped on them then it didn't matter because it's not rated anyway.

I highly doubt these are really rated in any way. So, don't trust them. Period. In my own home I might use them to bring the battery upright, but no way would I use them to lift the battery off the ground.
 
Thanks for posting. Love to see you unbox and install. Strongly considering this brand. Did you pay $3200 USD with shipping for one, or $3400? Thanks.
Was watching some of Will's older videos where he did DIY battery for 2800 USD for much smaller capacity. Seems about 3 years ago he switched to preferring server rack batteries. I need the outdoor rating on mine.
I got them on sale for $3059 each at Off Grid Stores...plus free shipping.
 
Diy would be $2k max with fancy case and premium ev grade cells. Barbebones on a shelf $1500.
I hear what you're saying, but doesn't that also include the wait for cells to come from china?
I am doing my own research into this, but not trying to reinvent the wheel.
All prices USD:
EVE MB31 314Ah 3.2V cells, 16 of them, at $155 each, is $2,472. I crave the larger ones to get 16.1 kWh per DIY battery. Add $300 for BMS with comms to victron gear, conductors, lugs, and an outdoor case, and you're at $2,772 USD. These are matched and tested cells with welded studs, includes bus bars, and US stock. That is 17 cents per watt hour.

The BMS would be JBD BMS or maybe JK BMS - not sure exactly which one yet - have not decided.

if I wanted to do the same things with 304Ah cells for 15.6 kWh, it would be $125 piece, $1996 for 16, add $300, and come to $2296. About $500 less, but also smaller capacity, but price per watt hour is 15 cents.

Zero warrantee on anything I've just mentioned.
You go up to the Riuxu outdoor battery from there in price, then up to the EG4 PowerPro in price, then the Lion Energy Sanctuary is the top price. All these are over 17 cents per watt hour - closer to 25 cents - but all 3 include 10 year warrantee.

I'm seeing that Ducan sells a massive battery for $1700 for 30 kWh:
But could be 4-6 months. Still that is less than anything I've mentioned above.
 
I hear what you're saying, but doesn't that also include the wait for cells to come from china?
I am doing my own research into this, but not trying to reinvent the wheel.
All prices USD:
EVE MB31 314Ah 3.2V cells, 16 of them, at $155 each, is $2,472. I crave the larger ones to get 16.1 kWh per DIY battery. Add $300 for BMS with comms to victron gear, conductors, lugs, and an outdoor case, and you're at $2,772 USD. These are matched and tested cells with welded studs, includes bus bars, and US stock. That is 17 cents per watt hour.

The BMS would be JBD BMS or maybe JK BMS - not sure exactly which one yet - have not decided.

if I wanted to do the same things with 304Ah cells for 15.6 kWh, it would be $125 piece, $1996 for 16, add $300, and come to $2296. About $500 less, but also smaller capacity, but price per watt hour is 15 cents.

Zero warrantee on anything I've just mentioned.
You go up to the Riuxu outdoor battery from there in price, then up to the EG4 PowerPro in price, then the Lion Energy Sanctuary is the top price. All these are over 17 cents per watt hour - closer to 25 cents - but all 3 include 10 year warrantee.

I'm seeing that Ducan sells a massive battery for $1700 for 30 kWh:
But could be 4-6 months. Still that is less than anything I've mentioned above.
Docan has a warehouse in Houston anything in the US section is generally shipped within a couple of days, includes shipping but need to add 5% for payment fee.

the stuff at the bottom out of China does take around 6 weeks and you need to chat with them to get the final pricing including ddp. Not a huge amount of savings there


So for sixteen EVE lf280k v3 ev grade it's $71*16*1.05=$1193 delivered within a week.

OG (non inverter) 200a 2a active balance jk bms for $100 via aliexpress (less thana a week for me).
 
Where in USA are you finding it lower? Reseller at Amazon, or just straight up Alibaba and hope you get your order before next June?
Educate me, please.
You must have missed my reply in the other thread.
It's a ripoff. Don't order cells from solarsupplyhouse.

18650 battery store, battery hookup, docan; in no particular order if you want US stock.
Amy with Luyuan if you want sea shipping.
 
You know, I enjoy building stuff ever since I was a little kid, now ancient about to be put in a museam, I still love building stuff.
Butt, and there is always a Butt and we all have one. LOL.
When you can purchase a 200ah, 280ah 16s LifePo4 batteries, in a nice metal case with lots of breating room and a good BMS board for $700 to $1200, shipped directly to you for $300 and 4 weeks with a 12-20 year Warranty..
Tell me why anyone wants to build batteries.. besides it is fun and rewarding..
Now don't sling arrows at me. Just want to understand.. and when they arrive.. most are at 80% 90%SOC, all you do is plug the cables in attach to the CB bus bar and power the invert.. about 10 minutes from Unboxing.. your good to go..
I have really enjoyed all the different DIY members who have shared their building of batteries and battery boxes... My self going on 4 years ago. I purchase what I discribed above. 3 150ah 15s LifePo4 , bolted to the wall and SA which I just put online with the Bats BMS In May.. they are doing wonder.. I have Seplos BMS boards that came in the batteries.. never had a burb.. now the AiO Growatt I wish I could be that lucky, 3 failures ,2 AiOs of the same make and spec.. and now going on 3 months and Growatt support sofar has decided they don't like DIY types and are Ghosting me..
Please enlighten me on the DIY Bats.. and I am being serious.. not being a Smart A$#. I would like to understand.. I may want to try myself.
 
Docan has a warehouse in Houston anything in the US section is generally shipped within a couple of days, includes shipping but need to add 5% for payment fee.

the stuff at the bottom out of China does take around 6 weeks and you need to chat with them to get the final pricing including ddp. Not a huge amount of savings there


So for sixteen EVE lf280k v3 ev grade it's $71*16*1.05=$1193 delivered within a week.

OG (non inverter) 200a 2a active balance jk bms for $100 via aliexpress (less thana a week for me).
280Ah x 16 is 14.3 kWh. I'm seeking the 314 Ah for 16.1kWh.
Still, the price for the 280Ah for USA stock is very good. About 11 cents per watt hour. About 6 cents less than Riuxu.

Must say the china stuff like this wall mount for $1100 for 15kWh is pretty cheap: https://www.docanpower.com/index.php?route=product/product&path=107&product_id=597 make it $1500 for grade A cells. That's about 10 cents per watt hour - a penny less than the raw cells and already in a box. Guess shipping will likely change this but no idea what that costs. Still you can see that building your own vs. buying pre-built is getting within $100 USD.
 

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