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This is for a 100A size 1 Siemens knife fuse : (ref : 3NA6130), cost 10€ a piece. An informative video on NH Fuses :

Still, look graph, temperature is a parameter as I said, contrary to your affirmation. Do not need to go to 90°C. No there is not vice versa, it's not symmetric, "That you do not see problem with rigid busbars do not prove that there not any". 1- If you can see a problem there sure is one 2 -If...

And now you got a fail on one cell..you got no spare...what do you do...you dismantle all pack..? In the 8p16s you just disconnect one pack (the one With the faulty cell) and you got time to fix the problem, you can disconnect a pack to top balance it if needed...it's flexible. You could even...

Let's say... You are both on the same boat... At least you were....?

Relax, i heard that they were on Holiday in Hawaii .. !!

Yes that's my point, i kind have the same feeling as you, expanding needs ... is not always good if those needs are not ... "usefull", specially if you are a "source of inspiration" for others. Now it's maybe the "American way" to oversize, cause "if we can why not doing it", petrol can gave...

You know how induction work ? There is nothing like DC induction, induction imply changing magnetic field => AC current. Well of course you can create AC from DC .. but this is in no way DC induction, appart if i missed something .. :D

Batteries... fire ... structure made of wood .. catch fire ... OSB .. more fire ... batteries now fall down .... walls on fire .. ? All that while you are asleep ... ;)

I'm kind like you, I tried to find why so much differences in price. My conclusion is that...Eve is selling at a high price cause they keep the best cells for them and they certainly want to be a "quality brand" -> high price. The other sellers got their battery on the grey market...they are...

Hi, I ordered 17 cells and one came dented Was a month ago, was pretty hard to make them accept to refund 100$ (cell+shipping for one cell). Even if we agreed on refund, still got no money after a month. I will not buy again from BASEN. My contact is Sheila.

Far too expensive, I used foam from the bin....and seems pretty good.

Lol .. i commented on your videos... and find you here .. :D Those are indeed CATL FFH3D3 = 86Ah, 16x = 4.4kWh not 5kWh => lie

Guys are not worry about something catching fire....? My cells are in a concrete box, I can sleep nicely, I would not with this kind of setup...

MMm i can't see how, since all material used in them got a lower specific heat then water. Phosphate : 770 J/(kg⋅K) Lithium : 3500 J/(kg⋅K) (but there is a very low quantity of Lithium) Fe : 450 J/(kg⋅K) Aluminum : 900 J/(kg⋅K) Manganese : 480 J/(kg⋅K) Carbon is 700 J/(kg⋅K) I searched and...

Of course 24V is sufficient for many systems.. PLUS you got access to many 24V (trucks) devices without a converter. It's less complex and thus .. less prone to fail and less dangerous, 24V and feets in water is ok, 48V ... is not. 48V is ok only if power is needed and in a way ... it's more...

Elfin EW11 is able to take RS485 data and inject those into MQTT, i will try that.

Seen from here, european country, where habits could be different, i can see 2 possibilities ... - A seller sell you devices with advices on what to do, advices are kind of "free" - The "all in one" package where he design a solution which will fit your needs ... this second one can cost far...

I would say .. the easy and cheap way is "aerated concrete", cost nothing.. easy to cut and glue together, highly resistant to fire. Box cost me 20€ for a 10cm thick box, for a 16S, 280A pack. Box

Perhaps the problem is that those specifications, are for grade A cells from Eve.... and perhaps those ( the one we are buying) are not following those specifications aka not grade A, reason they are sold at this discount.

Perhaps cause the definition of grade A is pretty vague, what is a grade A...? Normally it should be a battery within specs, with original serial number and warranty. Now..a grey market battery with the same internals, within specs too...what is it..? For sure it's different then an on off spec...

Hello, You will have to explain why a crimped+solder connection got more resistance (electrically speaking) then just a crimped one. Injection of solder will not prevent cu to be in contact with the lug. It I'll eventually fill some holes (that should not exist in the perfect world). The big...

Hi, I had a pack of 16xEVE sitting at my parents home for 2 years (since october 2020) and i just connected them ... guess what the result is ? Originally at 3.29V. Not bad ... ! The worse cell is at 3.28V, a decrease of 0.01V in 24 months, that's 0.35% lost in 24 month => 0.18% per year...

Where did you get those numbers, 30W and 80W ? That seems pretty high to me... would mean a pack of 16 cells would generate between 480W and 1260W .... when under 1C.

I suppose expansion is based on multiple parameters like temperature and voltage (state of charge), by that i mean that perhaps you did not reached the worst case scenario. Flexible busbars solve this risk ... they are not really more expensive... i can't see why not using them. Remind me the...

If there is a line and load described poles .. i would follow them.

I did a 16S pack and did not used rods in the middle, seems too dangerous to me ... just 2 rods, one on each side (10mm rods) and with a 30x40mm steel tube on each side. Left and right, those panels can move freely. The others, 2 sides and under can't move. The boards on each sides, where the...

I know Dacian, we both got a lot of discussion about is dmppt and how it was kind of unusable for other people then him, system was not flexible to satisfy different situations. The dssr is better but sbms only take 8 cells. In a way my system, on paper, look like the dssr but just not as pro...

Hello boys...and girls...if any....? I received my cells to, they are all within 3.284-3.285V, BUT one that is 3.275V...the sticker is different then other cells, I take it out of the box....seems It has been hit during the shipment (protection and packaging is good (BASEN)) Sheila is asking her...

Well...you talk about risk management, I do not see disadvantages for flexible bread or cable and they do not cost really that much. So.. an ingenior will chose them over rigid busbar. The only downside I see is that it cost more time to build, it's harder to industrialize the process. There is...

I'll add some details to that : 1. Pop-up window reminder function: When setting over-voltage, over-current, over-power and other protection reminder functions, when the detection value exceeds the set protection range, a pop-up window will pop up for 5 seconds to remind. The old KH reminds...

Thanks a lot, my inverter is on the way...so I'll just check voltage and internal resistance then I'll wait for my system to be build before testing batteries. I was trying to imagine :unsure: a system to test their capacity prior my system would be fully build...but that's a lot of energy, so I...

87Ah for a 90Ah is pretty good, specially for a pack of 4, meaning your worst one is 87Ah ... :p Thanks a lot for your feedback Bud.

Woooow it's a YouTuber war then...... should I get some popcorn....?

The dispute is opened, but Sheila is still opened to talk to me, I just disagree to be refunded half a cell price. For me this cell is not really usable, it's already a problem that I do not have a proper spare.

As we say in my country (an certainly in many others) "it's like milk on the fire"... It can change of "state" in a matter of seconds.

I talked a long time with the guy from pwod, he got 2 other shops, pictures look the same... I chat with him and I felt he was not honest.... But...it was only a feeling, I ended not buying from him.

I know this is old, but i do want to react for futur reference, a breaker should not be polarised between inverted and battery ... cause current go both ways. OR a 2 poles polarised breaker wired this way (see pic), cause one of 2 breakers will trip whatever direction the current is going. Rem...

Most of the time, energy independence come with an other way of consuming this energy. Lean how to use less, 100kwh of batteries is a lot....

MMMm i'm pretty sure the pressure will equilibrate and there will be no problem with the oval vs circular form. I feel that 2 cables in the same lug will still have less electrical resistance then 2 lugs connected one on each together. So there is this way : Or using a butt connector with a...

Yes, that's what I said about the terminal resistance to torque, 8 Nm. There are different qualities in bolt, a stainless steel 8.8 M6 will take...11Nm (staying in the 80% elasticity limit) of torque, it's written on the head of the bolt. Also depend on the threading of the bolt. (and yes...

Not in my case, we agreed to refund through PayPal, through alibaba and a TT it was 40$ fee vs 5$ through PayPal. Good news, I've been a pain in the ass but it payed, Sheila refunded me and I got my 100$ on my PayPal account...! My faith in Basen is full again... So, finally I can recommend...

In France we do not use kgf wich is not an SI unit, we use Newtons. A worse abuse is for the weight ... many people say "i'm weighting 100 kg" while they should say : "My mass is 100 kg and my weight is 981 N" Weight is a unit of force and mesured in N. Kg is a unit of mass and mesured un Kg...

Ho man ... if i was the seller i would refund or repair nothing. Agreed with other guys here, the clamping is very bad - Stress on all 4 corners with NO comrpession on "big faces" of those cells (as it is recommended). - Conductive strap that could lead to put cells in contact (electrically)...

Yes it makes a difference depending on the material, cause material got a different specific heat, from what i know.. by memory : to increase one liter of water of 1°C you need 1.162 Wh : Liters*DeltaT = 1.162 With 1000 Wh => DeltaT = 1000/(1.162*88) = 10°C And for what i remember, Specific...

Wow...1800kwh a month...? That's what I use in a year...? But 400wh a month, a 20% decrease is already quite nice..!

Hello, Ho yes, thanks, the battery is a CR1220, though it was included. Yes I would do something like that and stop charging for a night or so if I can't be awake when interesting things happened . Seems the RD6018 got a power limiter function that is not present in other model, I dunno when it...

DC-DC converter are pretty efficients. I use one to light my LED strip from a 48V pack (48v->24V), when i push the button (48V button), it switch the dc-dc that power the leds, this way i got 0mA wasted when lights are off.

Seems ok but i already got a NAS and 2 miniPC (i3 7100U, i5 9400T) that are running, not fan investing in a new device .. specially when it's so expensive for what it is .. :D If it was working in a dock or under linux/ windows .. would be a possibility, since it do not ... i keep the idea...

This 10mA things depends of course on the voltage. In my country, in France, we use 30mA, it's the code, it's everywhere in the house, for all "lines" of conductors. We use 230 VAC/50Hz. If there is a current leak, higher then 30 mA which is something like 7 watts, this part of the circuit is...

Yes case 1, Shed and House got their own utility, they give an example, a lamp in the shed can't be connected to the house utility.

Agreed on 25°C, we can still heat the slab at something like 20°C, under 25°C it's nearly unusable. Allright, we seems to agreed on 2x thermal capacity for sand at equal volume. To mitigate the loses of high temperature medium, insulation will need to be bigger and high temperature resistant =>...

Very good job..! Did someone tried to use an elfin wifi to expose rs485 data to mqtt directly...? And what about sending junctek data to a cerbo gx...?

I ordered 17 cells and one was like your, higher self discharge then the other 16, obviously not from the same batch (sticker was different). And there was physical damage on it. They propose to resend or to refund. I chose refund and asked that the cell plus shipping for this cell need to be...

Timers on corridors lights, on tv set and all those things, forcing them to get up and "add" some more time to this device that will finally shutdown automatically..? Well, first analysing where the energy is going then actions should be easier. This is a kind of work that can be hard on nerve...

https://www.sol-ark.com/wp-content/uploads/2022/08/SA-12K-P-Spec-Sheet-8-5-22.pdf Spec sheet say :

Perhaps I'm wrong, but I would say that as soon as your repaired pack is topbalanced, you could put it in parallel, just program the bms for a low discharge rate like 10A.. and the pack should go down to those others pack.

I understand, did not see it reach the device limit, we can just conclude that it's over 200A, allright. You just need a 2000A shunt to test ... ;)

Wow ... yours look like mine ? Chinese way of changing devices without changing reference names .. :LOL:

I will solder them too, I'm more confident to soldered connections. I took the 800w65v that is sold by riden seller. But soon I will get rid of the box and power the riden directly from the Eve battery pack (I will most certainly never use higher voltage then 48v). Will save me the use of the...

Totally different...I got aquariums and..man...do not bet on those temperature regulators, one day or an other they fail and... Stay on...or stay off...the first one is not fun. Put a low power one (20w seems ok) that even in case of failure will not break anything.

Many people use the term "xx% efficiency", but ... to be precise it's the peak efficiency, and for most of us, it's the efficiency on the whole "band" that is important, or at least where you use it the most. Of course inverters in industrial facilities are uses in their optimal "band" (at least...

Totally agreed.... i do not have space nor proper material to make those test...

Now we will have some "I swap my 272ah and 20$ for a 278ah cell to match the rest of my pack"....?

This is the optimal way, this small 800VA is eating 9W idle, wich is pretty low. In fact i got 2 AC circuits, one is 24h24 (the small 800VA) and one is "on demand", i switch the 6kVA inveter on, which is ready in 2sec, then i can use "high power" sockets. The 6kVA is 50W idle... which was not...

I would imagine a LiPolymer to have super high short Amperage.

Thanks for the input, I spent a lot on aliexpress with my CC, but never on Alibaba. I plan on paying through PayPal cause Basen gave me the opportunity, I will decide tonight then order from Basen.

Often parcels come to my house before the tracking number as been updated...it's like couriers are faster then electromagnetic wave in wires... Fascinating...?

As info, I got Eve for 100$ per cell ddp to France. (Basen)

Yes, I will build 2 circuis, one 48v (lights, water pump, aquarium pump..things that can be used at night/day. And a 220v which will be pretty simple, in the kitchen and in the office to use "normal" devices. There is not that much 48v downlight or led strips, but 24v are pretty common. I've...

That's the active bms I plan to buy, it seems pretty good on paper (1A/2A Active Balance BMS Battery Protection Board 13S ~ 24S https://a.aliexpress.com/_mtg861B) and if you say that some others are happy with the last iteration of it including you with this last 1A version... then I'll take it...

Is that what you are looking for ? I can't mesure the hole cause it's mounted in my box, but those are the screws that were coming with it . It's 10mm diameter. I used 8mm with a washer cause my lugs were 8mm, reason i got those unused.

A big meteoroid...! Trump being reelected...! Many things could still go wrong...?

Hoooo thanks for the calculator.. will comme handy .. ! My cables are 1.5m long, not that long, they are only PVC insulated.

My point of view ... i do not say hthat i'm right. - One cycle is 100% of the battery ... 10x10% = one cycle, 3x33% = one cycle. - Lower C = more battery life and lower degradation, till a certain point where it got no impact, as an idea .. let's say that the battery will not age faster at 0/1C...

Wouldn't it better to constrain cells before charging them...?

I do not think you can simulate time that easily you can do real test, let's say for a year and then do a projection which could be accurate or could be completly wrong, cause sometimes some factors arise after a certain time that weren't there at first. I think it's pretty hard to do a...

You are most certainly right, it's about my wires, they are said to be 10A but .. they do not seems to be. I double the single wire and i can now charge at 10A. I've created a new thread for this "problem", i suppose it's an operator error... so .. will certainly be usefull to others...

In our country if the ground pole is more then 100 Ohm, some other poles can be added, if the pole is 2m long, then the next pole need to be at least at 2m from the others, but they advise to put them at twice the length of the pole = 4m for a 2m pole. And those poles are connected together. On...

Wait a little...they are certainly drop shipping from china...?

PVC that got to be burried are not UV resistant and will become brittle after 5 years outdoor in the sun, yes the conditions are not the same in everyplace of the world. Just in our country (France) when a guy from "Brittany" is selling a car ... even worse .. a tractor... we do not want to buy...

Maybe wrong thread ? ;)

I'm looking at all this report, "I got 270ah"..."I got 267ah"...and I'm just thinking of this old cake recipe from my grandma and why the cake done by my mother do not taste the same following this recipe...cause there are many factors that influence the end result and while it's interesting to...

Wouldn't be better to charge all cells independently to their max capacity (low amp accepted) then let them sit for a while, read their voltage and then pack everybody to whatever 4s-16s let the pack sit...and check voltage again. I feel that pushing a voltage to the whole pack will distribute...

Ho really ... strange, cause it's a pretty interesting material, thought there would be a market for that in the US.

Yea...I'll perhaps take time tommorow to get the formula to calculate all this. We also got to keep in mind that it's very short and length is an important factor. In fact you can put lot of amp in a wire...it will just heat, then finally burn if it can't dissipate ....a lot of energy could be...

LF12V200AH-T ---> Pouch cells in it : proof https://www.aliexpress.com/item/1005004032678568.html

The 1000w are a large estimation on what I will use on this circuit. 2awg it will be, I do not plan on using massive power anyway, î will certainly never reach 5 kw. And the bms will be 150A. Did you heard on someone having done a "switcher" based on arduino..? I would like to connect directly...

I'm seeing many guys buying exact cells number...16..32...48, isn't it a good idea to buy one or two more in case one of the pack fail...?

Hello guys, Happy new year....a little in advance..? I got a message a week ago from alibaba "We acknowledge that you are satisfied with the shipping information for the Trade Assurance Order xxxxxxxxx (as you neither confirm the shipment nor request a refund within the given time period)...

Hi, Which active balancer do you have, is it one of those all in one bms/active balancer...? I found one on aliexpress, cost 120$ (150A and 2A max active balancing). Thanks

I suppose it's just commercial gimmick to admit those are not grade A cells. If I was an Eve grey market seller and that I would get my hands on hundreds of cells each month and got no time and tools to test their capacities....I would just test their voltage some hours after a top balancing and...

Hello all, I wonder if someone has done the "drivers" that would be install in VenusOS and that would connect the Junctek (RS485) KG or KH to the system ? If not i'm planning on doing it cause this shunt is pretty good, if you have some directions ... i'm taking them...

Hello, Thanks for sharing, it's very useful, since there is not that much price differences I ordered the RD6018w with the s800w65v power supply. (Cost : 115€ shipping included). You let me feel that you like this power supply a lot..? I was going for a cheap psu and when I saw all features in...

Happy New year to everybody .. !! I replaced my chinese inverters / MPPT with 2 Multiplus II (nice promo in Europe : 950€ for a 5kVA and 620€ for a 3kVA), a cerbo and an RS450/100. The MPPT start to produce earlier then the chinese all in one i was having and waste less energy doing so, i would...

Hooo i used to be DBA in an edition company and they made me use Business Object to generate some reports .. what a mess it was ... was not a fan of it. I was more fond of Sql Server to make those reports cause .. i know what really in it, with BO, many things became abstract and some results...

Yes I understand, I tested compression on mine and it felt pretty good, I have 4 different foam, I used the best. The one that do not compress at 150kg but does a little at 300kg.

Interesting, they are pretty fast... ! I'm looking into knife breaker right now, most of them are not expensive and some are pretty fast... ! The question arise about electronic, is it smart to use an electronic fuse which can fail (failing at detecting an anormal current) vs a fuse which will...

How are going discussions with Sheila...? I got a damaged cell, like you.. It got a different qr code then the others. And it's taking ages for them to agree to refund me cell+shipping. Now they have accepted...it's one week and still no refund on my PayPal.

They said, holiday....but I dunno the real reason.