The heating pads does have any thermostat?

In China the battery price has dropped very badly. 48v 300 ah power wall 10 year warranty sale for only $2.050 . Very Overcapacity

1:43 the best time before tariff

Fejl velt celle Nr. 16 UV. LF280 AH Defekt ved 3,222 volt, ved samkøring falder den celle til 1,882 volt

Hej seplos batteri fra 2023 14 cyklus defekt batt. nr. 16 kan ikke oplades til fuldt volt stopper ved 3,224 volt batt. (burde være 3,650 volt) defekt bliver byttet, men der der går ca. 60 dage og vil kun ombytte batteriet, vi skal være mere ops på vores garanti, fra kina de burde yde noget mere, batteri boxen kan ikke bruges ved 15 Batterier.

Thanks for the nice demo

So Nate how is a ballance installed in ur original 48 build

For coms, i use a PI3 and SolarAssistant. LVs usb in and the rs485 battery coms daisy chain in as well. I have the same setup, 4 x Lv and 8 x mason 280. Nov 2022. I live with 100mv diff on 2 of my packs after 10% soc at 56v with 55.2 float.

And the V2 passive balancer isn't great. V3 has active balancer option. I added Heltec 16S5.5A on my worst packs.

Set balance start to 3.45v and give it an absorption voltage to 56V. See if the Vdiff comes down. I run 8 of these Seplos V2 BMS. 16.7 firmware.

What is more problematic is one or two cells over voting before the others.

If you manually add charge to the low cells, you will see it is a very small amount of charge that is missing. The low cells are the ones with the highest capacity and have not reached to end of the flat portion of the charge curve.

Stop spreading stupid things! You can have even 10A difference in bat cap. The BMS will balance it fast, the idea is to top charge all cells before connecting them to the BMS. You should read first and then make videos....

Hey mate Thanks for your unbiased review. Im soon to install 2 packs with seplos 10e bms on a deye inverter. Would be keen to hear your longer-term review if you get a chance down the track. Keep up the great work 👍🏼

Charge you pack to 56.8v and the BMS will balance out within 3 cycles Firmware can be updated through the pc software ( just did so for my 10 packs)

You are not charging to a high enough voltage on your cells, the passive balancer will not get a chance to too balance properly...

Nice/better presentation

does it have connection built in for wall or solar panels? i want a semi portable option for our farm

So these batteries vent fumes ? Is this battery kit unsafe inside an RV ?? By inside I mean in the living area under the bed. Thanks !

so these inverters are 120 v each so you need 2 inverters to make it 220v

Thanks, very informative and useful video.

What if you used sodium ion cells ? Do they supply CATL sodium ion cells ?

It should not balance at such low voltage... 3.35v and balancing..why?? it's impossible to balance at such low voltage. because there may be all the cells at the same voltage - aka balanced but in reality they are NOT balanced because we balance the CAPACITY not voltage, so at such low voltage impossible to balance because it's FAR from fully charged. If this is just for 1 time only because of 200mv diff -then ok, but for later use -balancing should start at 3.41 and higher.

Why would you need such terminals?? like you ever do a 200Amps charge or discharge. Cells you got also crap. those chinese always lie.

0:46 stud itself as also a contact space.

I understand why you would use the tape. But I would never let any bolt, any metal, wondering about in the case

Awesome, probably I can hook this up to a cheap Lvd module, I have been looking for this kind of hardware since my scc is renogy adventurer, there is no load terminals, also I need to cut off power from the inverter, the tutorials I see are cutting off from the AC side but the inverter still ON, which I do not like

I do not see any cooling fans and ducts in your build.

Nice review. One suggestion, at the next barber visit, just say, buzz cut number 2. You aren't hiding anything. Speaking from several decades of experience. Great job.

Dang brother you’re well in your way!! Let’s go!!💪🏻

Eco Flow EF3 5:53 Delta Pro 1300 and 400 Watts o Solar and Your Kettle and Eggs are Done and You can use an AirFryer and Insta-Pot on AC and allow It to Charge Up from Solar Panels

I also have two MPP Solar inverters of the same model. Your installation video series on KZbin is the most detailed and extremely helpful. I have a question: is the ground wire only connected to the electrical panel and not to a grounding rod? When using a 240V outlet to charge a Tesla, does it still show a missing ground connection? Does it require a ground-neutral bonding plug? Thank you!

Hi there does the negative cable from the mppt has to be connected to the system minus to or just the negative cable from the inverter like you have shown on the video thanks

mc4 connectors arcs when solar over 10A

thanks for the presentation!! can i place the box vertically?

Is it worth build a battery for one year warranty when i can buy one for 10 years warranty,

Just bought 7 of these, as well as 112 306ah cells from them. Looking forward to putting these together once they arrive

I have some advice for beginners who may be looking for answers in these comments also if you want to ask a question to what I say oh will try and reply quickly. Going with Victron is generally always a solid choice units that have a 75 V input voltage limit for solar can only charge up to 24 V batteries and ones of the higher voltage can charge 48 V batteries. I would highly highly recommend going with a high voltage one if you think you may want to go to 48 V in the future as you can always program it to change the voltage up I have seen so many, people make this mistake originally and then replace a couple of charge controllers because they went with a bigger inverter and different batteries. You can go with cheap brands for things but you will always find yourself wanting a quality one like a victor unit in most cases however a cheap one can be worth if you’re starting out also if you want to know what size to use on these you have to calculate it don’t use one size because someone else did, a tiny bit into a cheap surge protector if there is a lightning strike nearby also Victron energy have an amazing tool on their website for choosing a solar charge controller if you google Victor energy charge controller select or something like that it may come up all you do is put in where you are what panels you have back information and recommend the chart controller it’s very good because it counts for if it gets very cold how high the panel voltage could rise without breaking things. Units with VE can have the ability that if programmed correctly they can sync with each other when changing the charge state of the battery however this is not strictly necessary units is only VE direct cannot do this but in most cases it isn’t necessary blue solar brand units do not have Bluetooth and you will need an adapter for Bluetooth to program it orfew other ways exist but they are a little bit complex. Smart solar ones contain Bluetooth be careful you can’t get caught up here but in a lot of cases if you use a lot of that other products you stop using Bluetooth for when it becomes advanced. Put on set line of monitoring devices called GX there is a name before that however these are quite pricey you can actually use a raspberry pi board with Venus OS and make your own monitoring device very cheap. I would recommend this as the logging helps you find faults and if you simply search Venus OS on KZbin, you can find how to make this for, around the same cost as this charge controller it is definitely worth it. They have much cheaper unit than this that are less advanced but certainly more than capable especially if the way your panels are set up you do not have that high wattage on one charge controller. There is no need to go high.

Will it communicate and work with Victron systems?

The Smartshunt lugs are 10mm, that's why they are slightly odd sizes compared to SAE.

Hmm.. I'd NEVER the word PERFECT, even if it is for panel angle. I'm stunned anyone would say crawling under a live panel is just ridiculous. WOW..! That's going too far. People do it all the time. It's very safe as long as they aren't sticking metal tools into both leads and holding onto them. Nate, Nate, Nate..! then you go and blow up your tester live. I guess your SHTF that day. Hope your day went better after you made this video.

Hey I hope you read your comments. So I use a 12v to 48v UPCONVERTER from this company. It gives me 600w which I use to fast charge my Anker power station from the 300ah Lifepo4 trailer battery if needed. Problem is it gets HOT! I rigged up a small cooling fan to keep it cool. Or I just drop it in the ice chest. Lol, it's waterproof!!! What do you think? Any ideas on keeping it cool? You could make your breakfast on it.

Good review, i know you mentioned the hottest the it would go is 90 degrees that's actually room temperature, the unit itself is pushing out 120 degree heat. I have this same hybrid mini split, great unit both Winter and Summer. I originally purchased it for off-grid purposes, incase the grid goes down but find myself using it because its very efficient.

How would someone use these box to make a 24v Pack? Is there a BMS that would work for this? I currently have 24v hybrid and 6 12v 100ah batteries, would love to eventually switch to larger cell battery in a bow like these as it looks so much better.

Do the inverters have to be stackable to do this?

Hello Nate, great video, i just build my first Yixiang 48V DIY Battery Kit with 280Ah EVE cells, I found something strange..... Maybe this is interesting for everyone.!! While installing the battery I noticed something, All batteries were between 0.19mΩ and 0.20mΩ before I placed them in the DIY box and compressed them. But after i placed both PCB boards and before I wanted to connect the measuring wires, I wanted to check the IR again. Very strange, it surprised me a bit. the internal resistance was suddenly 0.30 mΩ on all 16 individual cells. Can you or someone else check that also on your battery? I thought I had placed too much compression on the cells, but that was not the case... as soon as I disassembled the PCB - A and PCB - B, and i measure again, the cells were 0.20mΩ again. Conclusion: probably inductive voltage?? metal over the batteries?

Congratulations on reinventing electrical theory regarding current flow in a series circuit- or not! Of course the current flowing around a series circuit like these batteries will be the same at any and every point in the circuit. Take another look at your meter reading. The first reading is positive but when you move for the second reading it is negative because the current is flowing in a different direction through the meter. On a high quality meter the digits will be the same only the + or - will change. Your meter may have an offset (zero) adjustment that may need a tweak. Where you put the batteries in the series circuit will make no difference what so ever.

I installed it but no drilling, solar panel is mounted on the roof rail, wires enter through the back lights. I am using lithium battery, Mppt charger, and super capacitors to start the Prado. I posted the video.

This will not cut off charging, it will keep pushing amps into battery and overheat and possibly damage the battery. Use $3 more and get PMW and attach it after the converter, the converter will increase the amps and PWM charge controller will control charging.

can you put a link to the batteries and the quantities?