How to improve the compression in the SEPLOS MASON 280 DIY Kit.
ฝัง
- เผยแพร่เมื่อ 6 พ.ค. 2023
- Just before I started building the Frankenstein Battery, I wanted to do this little tweak of the #Seplos #Mason 280 Kit. One of you guys recently left a comment, that there could be a problem with the last battery in each row being pushed just onto two support beams inside the steel case.
When I built the battery, I saw this as well but didn't think too much about it. But... it kept coming back to my mind, so I wanted to fix that before all the bus bars and cables were mounted.
Here is my fix and improvement of the #compression situation in the Seplos Mason 280 DIY Kit.
SEPLOS MASON 280 DIY Kit, one of the best cases for DIY batteries out there: off-grid-garage.com/diy-kits/
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I would never thought i would watch a German man, who's having a Swedish lawnmower, in Australia, having to build battery's for me to watch to relax and fall to sleep every other day. Thank you for fullfilling my bingewatching needs.
Andy is great, as soon as he says sunny hot Oz-straya I am compelled to hit that like button. Props to your infectious energy Andy! 😊
And the battery he built is from china
Thanks a lot, all. The question is, why do some fall asleep though?! 🤔😁
Who knows.. but I have to confess that even due to a slight german accent I watch tour videos at 175-200% of the original speed and am still able to understand and comprehens them really well. A lot of other video’s don’t allow for that as most people actually speak very unclear, which notices at higher speeds.
I guess some of us just watch them at 1 am
or something. It would be like falling asleep during the 10th rerun of your favorite show.
You often talk about the length of your video’s.. I haven’t noticed 🙃
@@OffGridGarageAustralia Just keep them coming. They are exactly as we need them, especially with that soothing intro/outro guitarr jingle. No worries mate, we Swedes like it simple and informal.
I like it when you switch to German 😁
I'm Dutch, so no problem for me.
Gruß,
Marco
Eens.
@Marco F - When he say: bombenfest, you kow hat he means. Fijne avond Marco.
Verfluchtemistscheißenochemal 😂😂😂
Hi Andy, I'm glad you found my coment about this suggestion between those hundreds of comments on The Frankenstein Battery Project intro video and that you found it useful :).
I found this on another YB channel where they were building ELL battery kits and filled the gaps between the rear beams with wood to create a solid flat rear wall.
Then I checked the Mason kit in your videos to see if it was similarly done and it was.
So I wrote it to you and others I follow who have built these battery kits as a modification suggestion.
I just forwarded it to you :).
Ah, was this your comment?! I should really take screenshots when I read them...
Thanks for your suggestion and making us aware of that problem. Well, if it is a problem at all 🤷♂
Good job Andy!!
Another great demonstration, thanks Andy.
Thank you, my friend.
Recently got 4 of these and pleased to report that all the bits and pieces are now packaged in a very nice cardboard box! Also, the handles where already mounted which helped a bit getting it out of the box. The BMS had conformal coating on it, did not notice this on your vid´s. Got to get the cells in and will report findings, I´ll be back.
Quality of these boxes has definitely approved, so has the packaging.
My Seplos BMS have this coating as well. It seems pretty much standard with all the PCBs these days.
lol, nice how you lapsed back into german in the moments of high frustration :)
I always do in these situations 😊
I don’t have anything lithium phosphate yet (I’m still on 18650’s), but I’m learning everything single thing I need to know when the time comes. Thanks Andy 😊
Thanks a lot Peter. You will be a master once you make the switch. 😊
Smart thinking 👍
Thanks Andy
Thank you, Wayne!
Da sind die deutschen Wurzeln erkennbar, einfach nur Herrlich! 4:19; “oh nee, das ist ein Scheiß jetzt, jetzt klebt der Kack jetzt schon dran.“
Manchmal muss es eben raus 😂
I so need to come visit some day. Tired of snow. Haha
Please do!
This takes me back to you polishing the terminals. Being super fuss pot.
These cells are still working well in the other MASON box. The polishing was my greatest achievement yet 😁
Heya,yes that is a better solution with those aluminum plats at the end
[klugscheiss]Gliedermaßstab[/klugscheiss] 😅
Andy, everyday which is ending with a Garage Video, ends with a big smile in my face!
/Marc
Very nice ‼️Great idea your viewer was very intuitive. I wish I knew a little more about building your own batteries I'll have to check out more of your videos.
Thank you. Yes, watch some more, all information is here on the channel.
@@OffGridGarageAustralia I definitely will
I like it!
I have a new Mason-280 V3 kit (manufactured 31 Oct 2023) and the battery end plates are now part of the case. No need for mods.
We use 12mm plates that seems to be able to hold the 300kgF required.
Morning Andy, I'm getting cold down south now. Nice to adjust the feed in from the invertors to the batteries still.
We have just got three Daikin AC installed. Brilliant devices with COP of 5.1 Unbelievably efficient. Heating the whole house with 400W.
@@OffGridGarageAustralia I understand you, we have Mitsubshi electric through most of the house too. Got to love free heat.
Like# 19 a Caught me washing my panels!
You're washing your panels?! Interesting... I thought I have OCD, but that is...
@@OffGridGarageAustralia hahahahahahahahahahahaha, hey, I'm in the desert and they needed washing! Plus, I found some "sun spots" on 3 panels? I sent a pic to @AverageJoe and he's never seen anything like it...
Your welcome Andy! I will be interested in how things go, as I may do the same with mine, because I've upgrade to 2 x 5k Growatt Inverters and the old 10C BMS looks like I will have to replace them with the 10D type, as communication problems are proving difficult. Which means disassembling and handling those very sticky pads!! lol (my misses is German)
Thank you, Ken. Can you still get the 10D BMS from Seplos? I thought all new ones are 10E now which can do both CAN and RS485.
Say hello to your wife 👋
@@OffGridGarageAustralia Not sure I will ask if your that interested. I had mine for 2 years and had the 10C ordered at the same time. I am now installing the 10C as I am upgrading to Growatt Inverters. My old Inverter has short circuited on the DC side, still brings in the solar though. I will try to fix when I have uninstalled it!
3:30 looks definitely better!
Adding the Al plates at the end made sense, but I got a tooth ache when you started checking all the gaps. harharhrrrr. cough.
It's the fRAnKEnSTeIN Battery. It's rough!
Hey Andy. I hope with you everything is right and that the Frankenstein battery didn't eat you up. Waiting urgently for the new video😊
It's there now... The Frankenbattery almost got me!
I think the plates are overkill. Like your analysis in a previous upload, compressing the cells does not really matter that much in the long run. I like the way Seplos did it, which simple keeps the cells locked in place and not succeptable to vibration for mobile use cases.
Yes, it is a little bit inconsistent with his previous videos. He got me really confused. A year ago compressing was unnecessary, then a shocking drama with the cells bulging, a few days later again the message "Do not worry, be happy", and now something that might be interpreted as another U-turn. I'm going to build my first box for batteries soon, what am I going to do?
@@higamato3811 Follow manufacturers recommendations as always .
@@onthelake9554 Manufacturers instructions, which don't appear to have any examples of how to package 16 cells, that's why there is all the confusion.
@@TheRonskiman I would be interested in the number such as force (Nm) to press the articles. And not the statements "from the eye, estimated".
@@Slavomir-1977 Nm on a bolt will not work (if that's what you mean), as it depends how many bolts you have, how big your spreader plate is etc.
Initially the re-compressed cells will reduce their overall width right at the bulge, flattening but widening a bit, but the volume won’t change. The foam will obviously compress. When the cells expand over time, the screwed on end plate won’t stand a chance and deform. Probably won’t have any effect short term anyway as little feedback has resulted. Happens in most rack batteries that have cells that are restrained. Should be really interesting where the batteries are close, welded busses and poorly compressed. Like a drooping accordion.
We will take it appart again in a year's time or so and see what has happened. A bit of a long term experiment....
I like the detail of this and all the projects. Is cooling the cells important?
Thanks for your feedback. Any active cooling is not really necessary. I had no trouble here in sunny hot Australia during summer.
Hoping to get one of the upright Seplos Mason 280L, perfect for the cupboard my inverter is in.
Would be great if Seplos were to send you one of them for a review... *subtle hint* 😉
I have one incoming soon...
There's pretty much debate, and many different opinions, about the orientation of cells in such casings. Since it still is not sure every cell could be used like this, I would not build it.
Maybe Andy has an opinion about that as wel.
@@OffGridGarageAustralia Can't wait 😁😁
When building up gas and pushing it out due to compression one would want this to go up and not sideways I guess, putting them on the side feels counter intuitive.
@@NaamNatuurlijkniet The 'de-gasing' is only occurring within the first few cycles. Nothing to worry about it afterwards.
Andy watch out for temperature rise under prolonged high draw or charge - you might consider a PC fan to circulate the air across the stack
No fan! That causes more problems with dust and insects. Temperature seemed OK during our summer with the two boxes already in use.
Plates are good. I am wondering about heat build up in those enclosures and if some sort of filtered forced-air ventilation for cooling would be worthwhile?
No heat building up in my cases here in sunny hot Australia so far....
Andy, once you argued that no compression is needed, than your batteries seems to belly and now compression is it 😊. Can you do a 1 year experiment by usinfg the alu plates at the end in 1 one lane of the seplos and 1 lane at the beginning. So lets see what happens...
I still stay to my previous comments and arguments, that cell compression is not necessary.
The Seplos box is just designed like this and has only this one option. Tbh, it's not a real compression as the foam in between the cells will allow the cells to move a bit.
Hi Andy, I'm not sure if someone else has already made this suggestion, but recently I made the same fix for my case last year. However, instead of using two individual panels, I used a single panel that supports not only at the top and bottom but also against the center brace and the side braces. That appeared more stable to me.
OK, not entirely sure what you mean here. Also, top and bottom my be confusing terms as it should be front and back maube?
@@OffGridGarageAustralia Hallo Andreas, vielleicht dann doch lieber in deutsch. Wir reden hier vom hinteren Ende des inneren Käfigs wo Du zwei Alu-Platten eingepasst hast. Jede dieser Platten stützt an den oberen und unteren Rahmen des Käfigs sowie die Mittelstrebe die je am rechten und linken Ende ist wenn ich mich recht erinnere. Nimmt man nun eine einzelne Platte über die gesamte Breite so kann sich diese zusätzlich an der Strebe zwischen den beiden Bereichen sowie über kleine "Ohren" auch noch links und rechts abstützen und dürfte damit vermutlich noch steifer sein und die Stärke könnte etwas dünner ausfallen.
@@gersch8598 You could have done this in English 😂
@@OffGridGarageAustralia I tried to 😆 Didnt work. Egal wie jede Platte ist besser als keine. Ach ja und Vielen Dank für Deine Videos! Sowohl Deine Art als auch die Infos haben mich inspiriert und sehr weiter geholfen. Heute endlich mal 15 kW Wetter hier.
Deutsch or English ich habe understand😅
For a steel plate i think 2...3mm would be more then enough.
Hi Andy,
This makes me wonder about the other seplos cases you have installed. How did they do and is any misformation visible at the back.
My 1st kit is on the way from china now, I will make some plates beforhand.
Did you think about universal busbars already, or are you going for the frankenstein mix of busbars also ?
Keep up the good work 👍🏼
Mike
+Guter Kommentar, genau das wollte ich auch gerne fragen, wie sieht es mit dem älteren 280er Case aus, sind Veränderungen an den Zellen zu beobachten, oder ist das nur Panikmache?
Wäre schön wenn Du das hier lesen und beantworten könntest. Hilfreich für alle welche solch ein Seplos Case haben. Ich schreibe das in meiner Landessprache, weil es meine schöne Heimat-Sprache ist und alle die wollen, können Deepl oder Google nutzen.
We just have to press translate to english below you message 🙃
The other two Seplos MASON boxes don't have any back plates either.
I'm still unsure if it is needed at all or overkill. I guess a 3mm plate at the end can't hurt...
I own 3 similiar cases from EEL Battery and there is no vertical bar at all in the end. I fixed it by filling the gap to the back plate with a 26mm wooden plate or wooden bars. That´s it.
Hi, I saw your videos and then wrote it to Andy as a suggestion for improvement, so this modification here originally came from you :) 👍
Ah, right, here we go. Thank you both!
It's going to be fun to see this under test.
BTW how thick was the foam, not sure if it was mentioned.
1,5...2mm?
Yeah, the sticky foam is 2mm which came with the Seplos box.
Hey Andy, My thoughts are that the cells are odd shaped so having the same torque on each bolt would be the best option rather than same length. André in Sydney
Yes, all screws have 4Nm now.
Probably won't make any difference in the long run but if the front plate covers the entire side of the cell then having the back with the same coverage seems appropriate.
SEPLOS - a never ending story
next we hopefully see a firmware upgrade for all
A firmware update for a design issue in the case would be a first.. although you never know what comes from china 😂
I guess, we will see some alternative BMS first which have all the features we want... Seplos does not seem to understand what they need to fix and update in their software. Others do...
@@OffGridGarageAustralia you are right
did you measure it before you put plate? , maybe it affect`s the clearance of lifepo4 cell....
I think you put way too much torque on the screws... I have seen videos of people putting scales in the compression area to determine the necessary torque - and they were all amazed how little torque was needed for the suggested compression!
Keep in mind that the compression should not "squeeze" the batteries into a low volume, but keep them from expanding later on.
Greetings from rainy germany - I love the outtakes with your Schimpfworten :-)
Thanks Thomas. I think we're right with the 'compression'. I can still wiggle some cells as the foam will allow for some expansion, so the compression is more a fixture in the Seplos box.
The screws of the compression plates are showing 4Nm now.
3mm would be enough for this small force - with the bar in the middle - ask some one to calculate this.
I could calculate this, but my Bauchgefühl tells me - totally not necessary on this small loads
Yes, 3mm would have been sufficient, I guess. But the box provides the space...
I'm going to have 4 of these 200a units. To reduce floor space, I'm considering putting them on end up against the wall so the front panel faces up. My only concern is that it will be too much weight on the bottom cells.
It will be totally fine. Why didn't you go for the vertical boxes they have? They have wheels as well...
@@OffGridGarageAustralia Actually, I got the first one following along with your video's. That one took about 3 months to get. At the time, I didn't really have a plan. Currently, I have one that appears to be working fine (using 3 Growatt inverters ) and I ordered the second box that hasn't shipped yet. Similar to you, I have a number of cells that I want to move to the Seplos boxes.
Thumbs up 👍 If the front mount is bending is that showing to much pressure 😊
Or to thin of a material.
Seplos should provide tork settings for the screws to make sure the right pressure is met. Also when the foam is compressed over time one could tighten them again to specs. Not sure if they supply such info though.
The front plate was bending in all the boxes I built. It seems cheap steel 😁
Not related to the current video, but as it just came to my mind: Has anyone ever suggested that you should build a small battery (like 12V ~100Ah) in a genuine SPAT crate as case? To me it seems obvious that you should put some of those small blue cubes into one of the SPAT cubes. (As a sidenote to non-german viewers: In Germany SPAT is mostly sold in blue plastic crates which sometimes are refered to as "Blauer Würfel" (blue cube)). Guess sending a SPAT crate over wouldn't be a problem (guess a filled one might be tricky though)...
Well, SPAT is sold in 6-packs down here and 4 of them come in a cardboard crate with plastic shrink wrap. Barbaric!
If someone sends a Oettinger crate, I'll do it...
2:05 But isn't placing that support in the center of the battery wrong? Wouldn't it be better to leave the center empty and only put walls on the sides or a larger plate without holes? This is to allow the cell to handle the atomic-level forces involved in cell expansion (which, if I'm not mistaken, occur in the center of the battery) during charging and discharging cycles.
Or how do you think the atomic-level forces involved in cell expansion should be managed? I still haven't figured out what materials the separators should be made of, whether they should "have a bit of play" (somewhat like the porous separators Andy uses) or whether they should be rigid like PVC... etc.
Sorry, let me integrate now. I commented pausing at 2:05 without listening to what Andi says subsequently, and I must say that he makes very interesting and, in my opinion, correct arguments. A case as expensive as this one should have been better designed.
I guess, an even and plain plate at both ends is ideal, the very small expansion can be absorbed by the foam in between the cells.
I'm not even sure if this back plate is really necessary as we have more a fixture here than real compression.
why add more cost and weight? there are many plastic cases for batteries and some people just wrap mylar tape around it. Is there any test done on what is the pressure uniformity required for the longevity? I hear some people say that a snug fit is enough.
Is there any way to improve the weak Bluetooth built into the JK BMS. I love the BMS but I really need a farther range connection.
No, that's what you get...
So Andy, do we need to compressione or not? In previous videous you told we donato need compression
No compression needed. This Box from Seplos just has the feature to hold everything in place.
But you can compress if you like...
Gday Andy, a while back in one of your videos you had a 175a Anderson style plug with 70mm2 cable where did you get the lugs to suit please?
Regards
Matt
Hi Matt, what lugs do you mean, the ones in the Anderson or the ones on the other end?
I ordered the Andersons with the 70mm 'pins'. They have them as 50mm and 70mm, depending what cable you are using...
Sorry the pins in the Anderson (70mm2). Where did you order these from SB2/0 175?
@@mattdickason1927 I think, I got them from eBay and found a seller who had the different pins to choose from for the same 175A connector.
Hi Andy, non exactly solar related but partially solar related, what city do you live close to, trying to work out at which latitude you are for peak solar radiance?
I'm 27.5° S
Off topic question
How do you detect a isolation problem in string in a victron system on a DC side
You can measure it with your multimeter.
th-cam.com/video/dSez5WrEZFI/w-d-xo.html
Nice fix, but I'm a bit confused - you concluded recently that compression doesn't matter for your application of LiFePO4 cells, because you are not cycling them frequently enough for the loss of cycles to be a more 'pressing' concern than other degradation factors? So I understand why the Seplos still makes sense because your busbars and terminals won't be put under the stress from deformed cells, but why go to the trouble of preventing a bit of swelling at the rear since that has no effect on the geometry of the connectors?
Well, the Seplos box design does not provide any other options to hold the batteries in place. So, this is not about compressing or not compressing. It is what it is in these boxes.
Andy. Your taughts. I want to install my Seplos DIY 48V 280Ah on its back , meaning display facing up to the ceiling. So I think I gonna put some plates on the back/rear side so the all the cells will rest on those plates. Will that be doweble ?? Thx for all your efforts und hallo von Belgien !!
That should be doable and I cannot see an issue.
Seplos has also vertical boxes with wheels for that purpose...
Meanwhile I have filled up the back portion of the box with multiplex board. And at last with a 5mm alu plate. I have some pics taken.
@@b67fstb21 I think it is more peace of mind doing it, but it does not hurt either as there is still enough room to mount the front plate.
hi there, what is the name of the power provider your using for your home solar system?
That is Diamond Energy.
Is there a distributor for pure barebones? I mean without BMS to use an own. 🤔
This information would be valuable. Trying to build few 24V/300Ah packs and I'm still wondering should I go for wooden box or would there be some solutions like this, but without bms. Just a frame.
I think you can negotiate this with Seplos to get the box without any BMS and display. They also make the same box for 12V and 24V.
Or buy it with the Seplos BMS, then sell the BMS separately and keep the box.
I like these boxes too, but I'd put another BMS in there, currently a JK BMS,
or I can't wait to test the other BMS's Andy announces subtly in the comments here
that should meet everything we want them to. 🧐
The front of the box can easily be swapped out for a different sheet metal with different holes for different BMSs 🙂
Thanks Andy, may I still trouble with one question, do you see somewhere in chassis a good room for JK BMS (or clone) and do you think that display would be attachable somewhere?
I fear that once expanded, recompresion could lead to damage and failure
Depends on the SoC at the time of compression and other possible long-term irreversible swelling?
Ya, plus if the battery does swell up and its got no room for expansion, magic smoke will appear. I leave big gaps in mine for expansion. They're still flat. 3.65 to 2.50 every cycle. 20 years to degrade to 80%. I'll be dead before the batteries. Lol
I guess you cannot recompress them anyway, you just might prevent further growth of the baby.
It can lead to internal shorting of the cell
Why does Eve recommend it, and test for 6000 cycles with a compressed cell ?
Apparently it doesn’t hurt. Compression is specified though and just compressing to the max may be way too much.
Swelling may be ok and perhaps the compression is meant to make for an even swelling instead of a baby belly.
The Aluminium plate is good beter whit them than whiteout
I thought so too. One would have been enough though, I guess. But the option is there to squeeze another 6mm into this box without any problems...
hi there what was de battery monitor setting for de 5% SOC protection i cant find the video off it and i need it off 2
What BMS was that for? The Gobel BMS or another one?
🐸🐸🐸
in germany we say "scheiße" and i think thats beautiful
That's good to know. Thanks for letting me know 😁
How thick is this eva tape? I bought some 5mm but cannot fit the busbars anymore
Not even after compression ?
5mm is a lot. Judging from the videos I would say 2 - 3 mm at max.
The EVA coming with the Seplos boxes is 2mm thick. 5mm is a bit excessive, I think. You may want to consider flexible busbars anyway.
Can you tell how to find bidirectional mcb. Also I checked all your links but you don't have a link for the raspberry pi power supply your using the black colour thing. Please give link for it. I been searching for it couldn't find it😢
Most MCCBs for DC are bidirectional, like the ones on my website: off-grid-garage.com/battery-accessories/
I don't use a powersupply as such for my Pi. It's been connected to a 48V/5V isolated buck converter since the beginning.
Das ist gar nicht so blöd wie es aussieht,da meine 4 Gehäuse noch nicht da sind könnte ich das bei meinen auch einbauen.Die Neey Balancer mit 4A werde ich mit einbauen da sollte hinterm Bms noch Platz sein.
Lot's of space for a the NEEY behind the BMS, no problem...
I wonder what your reasoning is for adding TWO plates? 6mm better than 3mm? I would think 3mm would be enough. I imagine there was no vertical support on the L/R vertical sides and the plate would possible flex outward? Didn't think the cells would expand that much. But what do I know. Good video. Thanks for sharing
Well, I had the space and wasn't sure if 3mm Al is enough. I guess it would have been sufficient.
Bei mir dauerts noch aber ich werde die Box zum Komrimieren aufstellen so dass mir das Eigengewicht der Zellen hilft. Im Liegenden Zustand muss man die Reibung überwinden und die ersten Zellen bzw. Schaumplatten werden stärker Komprimiert als die hinteren (Das hat man etwas in deinem ersten disbezüglichen Video erkennen können).
Vielen Dank für den Hinweis mit der Rückseite
You might have a point there. I would guess though that after heating up and cooling down a few times this would correct itsself. Doesn’t hurt to overcome it from the start though.
One might even consider letting the pack stand on ots back for a few days to sink in.
Dadurch hat die unterste Zelle dann aber einen deutlich höheren Anpressdruck durch das Eigengewicht der darüber liegenden Zellen. Da Andy die Zellen aber einfach schieben kann (siehe 4:48) wird die normale Montage volkommen ausreichen.
We will do some vertical battery builds soon and discuss this...
6:13 Shouldn't we calculate how many Nm to tighten those 7 screws to achieve a battery compression of 300 kg?
No, because it will be too dependent on the friction of those screws. To do it the proper way, you would have to add springs and calculate the force by measuring their compression.
That is far too much. The Seplos box provides a fixation of the cells so they don't move around when the box is being wheeled around. It's not a real compression.
Seems overkill going for 6mm, however since you have the room and material, you might as well!
Yeah, I wasn't sure, but 3mm would have been sufficient for this bit of fixation in this box.
To my understanding, compression helps only for new batteries. Ones in use, it doesn't do anything anymore, right?
There is no force in the world able to prevent atoms from growing.
The compression comes original from the idea to force production gas bubbles out up along the side plates. Or Am I dreaming now?
I made a video recently and explained all this. But you're absolutely correct.
7:51 'fifty - six point four' is the number you are saying but the Zollstock shows 65.4
just to let you know people are watching seriously even though we have fun too if the SEPLOS Saga gets another sequel.
Read it again upside down 🤫
I am confused - in some videos you say compression is not needed, in some you say it is needed but it isnt needed, and in this one you take some effort to compress them. Whats the consensus? Is compression needed?
The video was not about compression or non-compression.
In the Seplos DIY battery box, compression is given by design, no other choice here.
It was just that the rear compressed battery cell did not have support across its whole surface,
which is not ideal, it only had support on the rear beams it was pushed against.
@@tiborchren I wasn't asking about the Seplos system. I was asking in general.
If as Andy has said compression is not required, then improving the compression in the Seplos system, would not be required either.
I am asking about battery compression in general as it seems there is no hard and fast answer.
What Tibor said 👆
It's the box design and more a fixation to keep the cells in place.
So finally those cells need to be compressed? Or not? 😅
They don't. The Seplos box just has this feature...
Vundabust😃
What?
Why not torque the screws instead? That should be more appropriate than measuring.
And you told us before compression does not make sense, now you make a video how to adjust the box for better compression. You need to drink a beer and tell us compression or not... 😅😅😂😂
I give you both options. This Seplos box has just the feature of holding the cells in place. And because it is on wheels, it makes sense to fixate the cells. Not compress...
This will not extend their life as previously discussed. It keeps them in place.
It takes up too much space I think. My metal box is from a different company, and the design inside is different. The void at that end is a full width single space (bar the uprights in each corner), which you could (almost) solid fill. It is 25-26mm deep, so I wonder, you could fill that quite cheaply with a few small sheets of 5mm epoxy board. I can get offcuts from a local company for a total of about £30 to fill that space, providing a solid end without losing any of the length. Thinking about it, you only really need compression around the electrodes, not the entire cell width. Interesting idea though.
The Seplos box has heaps of space for such a modification, so that additional 6mm is not an issue at all. We will do some vertical batteries as well soon and see how it works there...
Da die 2 Platten sich gegeneinander verschieben können hätte es auch eine getan. Kommt fast auf das gleiche raus. Grüße
Du kannst so schön in Deutsch fluchen !!! :-)
Yes, I can. Makes sense in these situations 😊
I think the plates should be glued then the support will be highest. Without glue two plates will slide slightly and not provide full resistance as one 6mm plate.
I'm not taking it apart again! I think, one 3mm plate would have been sufficient.
The Mason 135 is the same way
I couldn't quite remember... but we use smaller cells which are not tend to swell that much. Still should be a flat area in my opinion...
@Off-Grid Garage guess I will be tearing all 3 of mine down to add something to the back, been in service for several months so not sure if it's advisable to take them apart at this point, hopefully while I am waiting for yours or someone's else's reply you are working on your new neeeeeeeey video
@@todamnbad Yeah, not sure if it is necessary at all, but the EVA foam showed where the cells got compressed at the end. a bit more support can't hurt, I guess...
Herrgott Dunnerkeil nochemo!!!
Many thanks for your support, Peter. No swearing here in the channel please☺️
Unterschätze niemals den Kack! Denn er klebt.
3mm would have worked fine.
I guess so...
Too much compression is a MYTH. Did you yourself not watch the German video you posted a while back with the expert? I boils down to "don't overthink it". The ageing will kill it long before any missing compression. Btw. when it already have bloated (NOT Ploated...) - you can't put the genie back in the bottle...
Good comment 😄
More swearing in German pls, so funny 😅
Not a problem 😂
Don’t think that extra plates are necessary. Why? The cells are bulbing normally from the middle and there is the bar for support already.
They usually don't swell at the middle but more where the electrodes are, so right where the gaps in the back wall are. The foam has shown that.
4:22 🤣🤣🤣 Fluchen immer in der Muttersprache.
Immer!
Zollstock 🙄
Das Messinstrument heisst " Gliedermessstab " . 😉
Das AluBlech bringst nix ( Flächenmässig gesehen ) , zu weich .
Abgesehen davon isses eh egal , schraub den Kram zusammen , funktioniert so oder so .
Gruss aus dem Essener Süden
Der Gliedermessstab....very formal 😂
Geflucht wird natürlich auf deutsch 🤣Sehr symphatisch
Why all the hassle? You yourself elaborated on compression and whether it is required or not a dozen times back and forth. It doesn't matter.
The Seplos Box uses fixation for holding the batteries in place. It's not real compression.
@@OffGridGarageAustralia pretty much of a fixation :D
Yeah, bring Frankenstein 2 Life. That can only Germans do😂
Next video... I just had to wait for full moon and enough lightning to wake up the BEAST! 👾
Why compressing cells? I can propose you a cool video from TH-cam to explain you this point…😅
No compression. It's just the box design here, holding them in place 😊
This is a very dangerous design. If you are doing such tight compression you should use die springs or similar to account for small expansion (and failures)
I like your longer videos. Why did you decide to make shorter ones, was it some algorithmic, views turn out? My totally unprofessional advice to you is to keep on doing shorter videos for what ever reason their is for that and then compile them in to a longer video, now everyone is happy, no?
It all depends on the topic. I really don't pay much attention to the length of the videos.
@@OffGridGarageAustralia Ok, I may have just come to a false conclusion. Maybe I heard you say something about trying to keep you’re videos short and then experienced a couple short videos shortly after. No criticism from me, it was just a honest question from a biased/wrong conclusion by me.. Keep up with the great work!
1st🎉😎😅
🥇
🤔 what ? Son quatsch 🧛
Do not buy batteries from Hu Flung Poo in Shenzhen.
Not helpful...
All that engineering and I see 65 -4 not 56 -4
Not when you read it the other way around. Watch again 😄
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