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Xuba Electronics: DEAL - 280AH LiFePo4 cells. Purchase & Review

Sgt Raven said:
PG&E uses a lot of aluminum wire, but I think it is because making up for the line loss is cheaper than using all copper. Plus theft is less of an issue with aluminum than copper. Their usage is 3 or 4 times aluminum over copper. At one job I had I hauled 20' debris boxes of aluminum, copper and ferrous metal from their yards.
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Exactly -- so several of the teams working along the Border will use aluminum because its not worth anything at all - or especially not worth someones life trying to steal it ... they switched to aluminum because (way before I started) one of the linesman had to go out to work on one of our down power lines on the border and found a dead kid still on the wire who had tried to knock the fuse loose and then he would cut the cable on his end and his friend who was on the other pole would cut his end and they would drag 450 feet of copper back across the river ... anyway ... we figure he lost his balance and grounded himself while trying disconnect the line (that literally has a shotgun shell in it to "blow" the fuse loose) ...
 
ghostwriter66 said:
OH please stay away from aluminum .. I think it has the conductivity of only 67% of copper - but i am away from my notebook right now ... BUT we stay away from aluminum at all cost ...

my suggestion -- as i have said before -- 1/2 pipe under a board with a truck running over it to get it started -- finish up with a 5 lb sledge to smooth it out ..
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Probably will be 1/4 or best 3/8
I'm not going to buy 10 meters to make busbar :)
Just reuse the scraps I have
Maybe connect a few with tin/solder to have best thickness/wide
 
Steve_S said:
Linemen, PG&E Aluminium Wire ? NOT ON TOPIC EH !
What was the subject of this thread again ? oi...
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WAIT - you meant there was an original subject .. hold on - let me see what it was ... OK XUBA ... SOOO getting us back on track -- about to order (16) more 280aH from Amy to be delivered for I think 1836 or there about ... still the best price and service I think ... feel free to correct me if there is something currently better ...

and this is where I derail the conversation again ...

@fhorst - yeah i can't remember off my head but I think i use 1/2 in order to get 1 inch bus bars - but i will measure this afternoon when i go on shift at 1200 ...

Someone could just take the 705 posts that's been written here --print those out - compile them -- and it would make a Best Selling book of everything you ever wanted to know about Solar systems ... :cool:
 
ghostwriter66 said:
WAIT - you meant there was an original subject .. hold on - let me see what it was ... OK XUBA ... SOOO getting us back on track -- about to order (16) more 280aH from Amy to be delivered for I think 1836 or there about ... still the best price and service I think ... feel free to correct me if there is something currently better ...

and this is where I derail the conversation again ...

@fhorst - yeah i can't remember off my head but I think i use 1/2 in order to get 1 inch bus bars - but i will measure this afternoon when i go on shift at 1200 ...

Someone could just take the 705 posts that's been written here --print those out - compile them -- and it would make a Best Selling book of everything you ever wanted to know about Solar systems ... :cool:
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Amy has convinced her managers that they should double the bus bars sent. The ones they presently supply are 2mm thick x 15mm wide x 94mm long. These are fine IF your building a Series Only pack but they are too short if you have cells end-to-end. With the busbars doubled to 4mm, the screws don't bottom out either but they do if you only use one busbar @ 2mm thickness.
 
706 posts in and I still don’t know what kind of whiskey Amy drinks.

But seriously, is the prevailing sentiment that these cells are meeting expectations (regardless of who really makes them/QR codes etc.)?

I’m trying to go through the two giant threads about them but it’s gonna take me some time to binge all the episodes.
 
Steve_S said:
Linemen, PG&E Aluminium Wire ? NOT ON TOPIC EH !
What was the subject of this thread again ? oi...
Click to expand...

Xuba Batteries! I Amy just updated my that mine are shipped (Sea to Europe / DDP). It'll take about a month but can't wait.
I scrapped my idea with 16 cells and 48V for now, simplified a bit and got 8x280Ah for 24V. 6.7KWh should but good for something.

Still need the rest of the van built out. Getting supplies isn't easy with all hardware stores closed for weeks.
 
the_tux said:
Xuba Batteries! I Amy just updated my that mine are shipped (Sea to Europe / DDP). It'll take about a month but can't wait.
I scrapped my idea with 16 cells and 48V for now, simplified a bit and got 8x280Ah for 24V. 6.7KWh should but good for something.

Still need the rest of the van built out. Getting supplies isn't easy with all hardware stores closed for weeks.
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Jeeze, I can get just about anything I need on this side of the pond. Either in person or shipped to me. Most auto parts and home improvement stores are still open. The places that are not open, to the public, are still shipping parts. Today, they didn't have a 5x20mm 10A glass fuse, but they had a inline mini blade fuse holder, so I got that and changed out the fuse holder.
 
ghostwriter66 said:
The issue is that I just don't like dangling wires anywhere outside the case .. if you put 2 RG45 cable jacks on each of the boxes you don't have to worry about that at all -- unles i am misunderstanding your concept ... PLUS witgh my way if anything ever happened to the cable you can get another one ANYWHERE ... with your way you would have to take time to remove the cable from the battery or BMS and install a new one of the same sort
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The Chargery BMS uses RJ9 4 conductor. Yet RG45 shouldn't be an issue to tie two which would be 8 conductor. I used RJ45 to remotely mount buzzer (2 conductor) in case then signal to display (4 conductor) and the extra two I've not decided yet but maybe led light or USB on the external case the display is in.
 

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What is the consensus of those that have received the cells? Are they new or used?

(I apologize, but 36 pages of posts is just too big to rummage through. )
 
johntaves said:
What is the consensus of those that have received the cells? Are they new or used?

(I apologize, but 36 pages of posts is just too big to rummage through. )
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I am not an expert in any way. But there is nothing about the cells I recieved that makes me believe they are anything but new.
 
johntaves said:
What is the consensus of those that have received the cells? Are they new or used?

(I apologize, but 36 pages of posts is just too big to rummage through. )
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The easiest way to check is this ... hook up a wire to each terminal ... peel back about 1"in of installation -- now touch the (2) wires to your tongue ...if you saw JESUS for a few seconds then they are GRADE A ... if you just burnt your tongue really bad (but did not see Jesus) then its Grade B ...

and they say that there are NO Chinese Women comedians ...phewww

I will tell you -- the last million or so (+/-) batteries from XUBA I have received have all been Grade A ... new car smell and all ...

NOW with all of that said --I rpomise you that in the last 800 posts on this one topic we have gone through everything you need to know about Solar "stuff" and have solved world-hunger and discovered the meaning of life so you might want to go back and start with #1 ....

:unsure:
 
Sorry, but someone from some other forum said they were used. However, I am pretty sure he is talking about similar looking cells of different capacity from different suppliers. I panicked. My bad.
 
johntaves said:
Sorry, but someone from some other forum said they were used. However, I am pretty sure he is talking about similar looking cells of different capacity from different suppliers. I panicked. My bad.
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No i will say that in the beginning allot of companies were probably doing the "hey their Americans they will never know" thinking and clearing out their Grade B's as A's .. I for one have never got a Grade B ... but I have got some Grade A's that have looked like they went through a rough night in Bangkok ... with that said -- for cost and quality right now XUBA has everyone bet ... but that can change daily so just keep checking back
 
The bus bars that XUBA is including are rated at what ? Trying to decide on whether to use theirs or use some copper bar stock to connect up a 2p4s config.
 
In case anyone got the 105Ah cells, or is thinking of getting them, I finally found the perfect case on amazon.

Fits 4 of those cells on their side with ample space for the BMS and some padding. It holds the battery tight which makes it sturdy and portable at ~10kg.

https://www.amazon.com/gp/product/B00KJNJB76
 

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andruby said:
In case anyone got the 105Ah cells, or is thinking of getting them, I finally found the perfect case on amazon.

Fits 4 of those cells on their side with ample space for the BMS and some padding. It holds the battery tight which makes it sturdy and portable at ~10kg.

https://www.amazon.com/gp/product/B00KJNJB76
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I wish I still had access to my old shipping department. We had a fiber banding unit that used heat instead of metal clips and had plastic corner protectors, too. I think one in the top and bottom 3rds would be prefect for tying a cell pack together....
 
Sgt Raven said:
I wish I still had access to my old shipping department. We had a fiber banding unit that used heat instead of metal clips and had plastic corner protectors, too. I think one in the top and bottom 3rds would be prefect for tying a cell pack together....
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I wonder if anyone has tried a big old shrink tube.
Like they use on the cylindrical cell packs but a bit bigger.
 
rbreding said:
The bus bars that XUBA is including are rated at what ? Trying to decide on whether to use theirs or use some copper bar stock to connect up a 2p4s config.
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Lately the batteries I am getting from XUBA has had double busbars and longer screws so you could double up on them ... i actually haven't measured them to see what they are rated at --
 
smoothJoey said:
I wonder if anyone has tried a big old shrink tube.
Like they use on the cylindrical cell packs but a bit bigger.
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I haven't but I have thought of it. Like what the individual cells are wrapped in, but groups of 4.
I think any more than that would get too heavy to easily handle.
 
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